{"id":2712,"date":"2026-08-03T17:19:26","date_gmt":"2026-08-03T21:19:26","guid":{"rendered":"https:\/\/www.creechimport.com\/blog\/?p=2712"},"modified":"2026-08-15T12:27:50","modified_gmt":"2026-08-15T16:27:50","slug":"duramax-6-6l-oil-leak-diagnosis","status":"publish","type":"post","link":"https:\/\/www.creechimport.com\/blog\/duramax-6-6l-oil-leak-diagnosis\/","title":{"rendered":"Duramax 6.6L Oil Leak Diagnosis \u2013 Why Creech Import Is Raleigh&#8217;s Specialist for L5P Diesel Service"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2712\" class=\"elementor elementor-2712\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4dd6b607 e-flex e-con-boxed e-con e-parent\" data-id=\"4dd6b607\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61622f83 elementor-widget elementor-widget-text-editor\" data-id=\"61622f83\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Duramax 6.6L oil leaks are a known concern for owners of 2024-2026 Silverado 2500HD\/3500HD and Sierra 2500HD\/3500HD trucks equipped with the 6.6L Duramax diesel engine (RPO L5P). These oil leaks can occur from the engine oil cooler seal, oil pan gasket, rear main seal, or other locations, and if left unaddressed, they can lead to low oil pressure, engine wear, and potentially catastrophic failure. At Creech Import, we have been diagnosing and repairing Duramax diesel engines since their introduction in 2001, and we understand exactly how the L5P engine is built, what causes oil leaks, and how to identify problems early. This comprehensive guide explains the most common Duramax 6.6L oil leak sources, what symptoms to watch for, how proper diagnosis can save you from unnecessary repairs, and why Creech Import is Raleigh&#8217;s trusted choice for diesel engine diagnosis and repair.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-200d697 e-flex e-con-boxed e-con e-parent\" data-id=\"200d697\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b86a48d elementor-widget elementor-widget-heading\" data-id=\"5b86a48d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Understanding the L5P Duramax Engine \u2013 A Technical Overview\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ac45a9 e-flex e-con-boxed e-con e-parent\" data-id=\"4ac45a9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56930a0e elementor-widget elementor-widget-text-editor\" data-id=\"56930a0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">The L5P is GM&#8217;s 6.6L Duramax V8 diesel engine, introduced in 2017 and used in 2024-2026 Silverado HD and Sierra HD trucks. It produces substantial torque and horsepower, making it a favorite among heavy haulers, contractors, and RV owners in Raleigh. However, like any complex diesel engine, the L5P has its share of potential issues, including oil leaks that can develop over time or suddenly appear.<\/span><\/p>\n<h3><span class=\"\">Key Specifications of the L5P Engine<\/span><\/h3>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Displacement:<\/span><\/strong><span class=\"\">\u00a06.6 liters (403 cubic inches)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Configuration:<\/span><\/strong><span class=\"\">\u00a0V8, 90-degree<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fuel system:<\/span><\/strong><span class=\"\">\u00a0Common rail direct injection<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Turbocharger:<\/span><\/strong><span class=\"\">\u00a0Variable geometry (VGT)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Emissions controls:<\/span><\/strong><span class=\"\">\u00a0DEF (Diesel Exhaust Fluid), DPF (Diesel Particulate Filter), EGR (Exhaust Gas Recirculation)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Power output:<\/span><\/strong><span class=\"\">\u00a0445-470 horsepower (depending on application)<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Torque output:<\/span><\/strong><span class=\"\">\u00a0910-975 lb-ft (depending on application)<\/span><\/p>\n<\/li>\n<\/ul>\n<h3><span class=\"\">The L5P Lubrication System \u2013 How Oil Flows<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The L5P&#8217;s lubrication system is complex, with oil flowing through multiple paths to lubricate and cool engine components:<\/span><\/p>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Oil pump<\/span><\/strong><span class=\"\">\u00a0\u2013 draws oil from the oil pan and pressurizes the system<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Oil cooler<\/span><\/strong><span class=\"\">\u00a0\u2013 a heat exchanger that cools engine oil using engine coolant<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Oil filter<\/span><\/strong><span class=\"\">\u00a0\u2013 removes contaminants from the oil<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Oil galleries<\/span><\/strong><span class=\"\">\u00a0\u2013 internal passages that distribute oil to bearings, lifters, and other components<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Turbocharger oil supply<\/span><\/strong><span class=\"\">\u00a0\u2013 feeds oil to the turbocharger for lubrication and cooling<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Oil return<\/span><\/strong><span class=\"\">\u00a0\u2013 oil returns to the oil pan after circulating through the engine<\/span><\/p>\n<\/li>\n<\/ol>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">When any seal or gasket in this system fails, oil can leak out, leading to low oil pressure and potential engine damage.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-21b1b540 e-flex e-con-boxed e-con e-parent\" data-id=\"21b1b540\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27d217aa elementor-widget elementor-widget-heading\" data-id=\"27d217aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Common Duramax 6.6L Oil Leak Sources \u2013 Detailed Breakdown\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1adec46c e-flex e-con-boxed e-con e-parent\" data-id=\"1adec46c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a88d1a5 elementor-widget elementor-widget-text-editor\" data-id=\"6a88d1a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"\">1. Engine Oil Cooler Seal Leak \u2013 The Most Common L5P Oil Leak<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Some 2024-2026 Silverado 2500HD\/3500HD and Sierra 2500HD\/3500HD trucks equipped with the 6.6L Duramax diesel engine may have an engine oil leak from the oil cooler seal. This is one of the most common oil leak sources on the L5P engine and can appear on relatively low-mileage trucks.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil spots under the vehicle \u2013 often near the front of the engine<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Low oil level between changes \u2013 requiring frequent top-ups<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Burning oil smell \u2013 from oil dripping onto hot engine components<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil residue on the engine block or crossmember<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Visible oil dripping from the oil cooler area<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Seal degradation from heat and age \u2013 the seal material can harden and lose its sealing ability<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Improper seal installation \u2013 if the oil cooler has been serviced previously<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Cooler housing warping \u2013 from overheating or over-tightening<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Coolant contamination \u2013 coolant in the oil can damage seals<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Why This Is a Serious Issue:<\/span><\/strong><br \/><span class=\"\">The oil cooler seal leak can be difficult to diagnose because the oil can spread across the engine, making it appear that the leak is coming from elsewhere. If left unaddressed, a small leak can become a large leak, causing low oil pressure and potential engine damage. Additionally, oil dripping onto the hot exhaust components can create a fire risk.<\/span><\/p>\n<h3><span class=\"\">2. Oil Pan Gasket Leak<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The oil pan gasket can develop leaks over time, especially on high-mileage engines or engines that have been subjected to extreme temperatures. This is a more straightforward leak to diagnose because it&#8217;s visible on the bottom of the engine.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil drips from the bottom of the engine<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil residue on the oil pan and surrounding components<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil spots under the vehicle after parking<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Gasket degradation \u2013 from heat and age<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Over-tightened or under-tightened oil pan bolts<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil pan damage from road debris \u2013 rocks or curbs can dent the oil pan<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Crankcase pressure issues \u2013 from a clogged PCV system<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Repair Considerations:<\/span><\/strong><br \/><span class=\"\">Replacing the oil pan gasket requires draining the oil, removing the oil pan, cleaning the sealing surfaces, and installing a new gasket. The oil pan bolts must be torqued to the correct specification to prevent future leaks.<\/span><\/p>\n<h3><span class=\"\">3. Rear Main Seal Leak \u2013 The Most Expensive L5P Oil Leak<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The rear main seal is located at the back of the crankshaft, where it connects to the transmission. This is a more serious leak because it requires transmission removal to repair. A rear main seal leak can be mistaken for a transmission fluid leak, so proper diagnosis is essential.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil dripping from the bellhousing area \u2013 where the engine meets the transmission<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil between the engine and transmission \u2013 visible from underneath<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Low oil level \u2013 from oil escaping through the seal<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Clutch or torque converter issues \u2013 in severe cases, oil can contaminate the clutch or torque converter<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Seal wear from age and mileage \u2013 the seal can harden and lose its sealing ability<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Crankshaft end play \u2013 excessive movement can cause the seal to wear<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Improper installation \u2013 if the seal was not installed correctly<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">High crankcase pressure \u2013 from a clogged PCV system<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Why This Is a Serious Issue:<\/span><\/strong><br \/><span class=\"\">The rear main seal is one of the most expensive oil leaks to repair because it requires removing the transmission. The transmission must be supported, disconnected from the engine, and lowered to access the seal. This is a labor-intensive job.<\/span><\/p>\n<h3><span class=\"\">4. Valve Cover Gasket Leak<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Valve cover gaskets can leak, allowing oil to drip onto the exhaust manifolds and create a burning smell. This is a relatively common leak on higher-mileage Duramax engines.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Burning oil smell from the engine bay \u2013 especially after driving<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil residue on the valve covers and exhaust manifolds<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil dripping onto the exhaust \u2013 can cause smoke<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Gasket degradation from heat \u2013 the gasket can harden and lose its sealing ability<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Over-tightened or under-tightened valve cover bolts<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">PCV system issues \u2013 excessive crankcase pressure can force oil past the gasket<\/span><\/p>\n<\/li>\n<\/ul>\n<h3><span class=\"\">5. Turbocharger Oil Line Leaks<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The turbocharger has oil supply and return lines that can develop leaks over time. These lines are subject to high heat and can degrade.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil dripping from the turbo area \u2013 visible on the exhaust manifold or heat shield<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Burning oil smell from the exhaust<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">White smoke from the exhaust \u2013 if oil enters the exhaust system<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Line degradation from heat \u2013 rubber or metal lines can crack or corrode<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Loose fittings \u2013 from vibration<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Gasket failure \u2013 at the turbocharger mounting points<\/span><\/p>\n<\/li>\n<\/ul>\n<h3><span class=\"\">6. Front Crankshaft Seal Leak<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">The front crankshaft seal is located behind the harmonic balancer. A leak here can be difficult to spot because the seal is behind the balancer and other components.<\/span><\/p>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Symptoms:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil dripping from the front of the engine \u2013 near the harmonic balancer<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil on the serpentine belt \u2013 can cause belt squealing<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Root Causes:<\/span><\/strong><\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Seal wear from age and mileage<\/span><\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Harmonic balancer issues \u2013 wobbling can cause the seal to wear<\/span><\/p>\n<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7d8ed045 e-flex e-con-boxed e-con e-parent\" data-id=\"7d8ed045\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35a07154 elementor-widget elementor-widget-heading\" data-id=\"35a07154\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Duramax 6.6L Oil Leaks Are Often Misdiagnosed\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-577f7411 e-flex e-con-boxed e-con e-parent\" data-id=\"577f7411\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13ffeb18 elementor-widget elementor-widget-text-editor\" data-id=\"13ffeb18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Duramax 6.6L oil leaks are frequently misdiagnosed because:<\/span><\/p>\n<h3><span class=\"\">Multiple Leak Sources Can Appear Simultaneously<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">An oil leak from one source can spread oil across multiple areas, making it difficult to identify the actual source. Oil can drip from one component and blow onto another, creating a misleading appearance.<\/span><\/p>\n<h3><span class=\"\">Leaks Can Be Intermittent<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Some leaks only occur under certain conditions, such as when the engine is hot, under load, or at operating temperature, making them hard to reproduce during inspection. A leak that only appears on a hot engine may not show itself during a cold inspection.<\/span><\/p>\n<h3><span class=\"\">Diesel Engines Are Complex<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Duramax engines have many components that can leak, including the oil cooler, turbocharger, and various seals. Without proper diagnostic equipment and expertise, it is easy to misidentify the source. A visual inspection alone may not be sufficient.<\/span><\/p>\n<h3><span class=\"\">Oil Spreading<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil can spread across the engine, making it appear that the leak is coming from a different location than the actual source. For example, an oil cooler seal leak can spread oil across the front of the engine, making it look like a front seal leak.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7a31c5e8 e-flex e-con-boxed e-con e-parent\" data-id=\"7a31c5e8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12b5ab4b elementor-widget elementor-widget-heading\" data-id=\"12b5ab4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How Creech Import Diagnoses Duramax 6.6L Oil Leaks\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-65620e54 e-flex e-con-boxed e-con e-parent\" data-id=\"65620e54\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-413202f elementor-widget elementor-widget-image\" data-id=\"413202f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.creechimport.com\/blog\/wp-content\/uploads\/2026\/08\/Duramax-6.6L-Oil-Leak-Diagnostics-at-Creech-Import-infographic-1024x683.png\" class=\"attachment-large size-large wp-image-2774\" alt=\"Duramax 6.6L oil leak diagnosis\" srcset=\"https:\/\/www.creechimport.com\/blog\/wp-content\/uploads\/2026\/08\/Duramax-6.6L-Oil-Leak-Diagnostics-at-Creech-Import-infographic-1024x683.png 1024w, https:\/\/www.creechimport.com\/blog\/wp-content\/uploads\/2026\/08\/Duramax-6.6L-Oil-Leak-Diagnostics-at-Creech-Import-infographic-300x200.png 300w, https:\/\/www.creechimport.com\/blog\/wp-content\/uploads\/2026\/08\/Duramax-6.6L-Oil-Leak-Diagnostics-at-Creech-Import-infographic-768x512.png 768w, https:\/\/www.creechimport.com\/blog\/wp-content\/uploads\/2026\/08\/Duramax-6.6L-Oil-Leak-Diagnostics-at-Creech-Import-infographic.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-442e8180 e-flex e-con-boxed e-con e-parent\" data-id=\"442e8180\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-33372cb9 elementor-widget elementor-widget-text-editor\" data-id=\"33372cb9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">At Creech Import, we use a systematic diagnostic process to identify Duramax 6.6L oil leaks:<\/span><\/p>\n<h3><span class=\"\">1. Visual Inspection<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We perform a thorough visual inspection of the engine, looking for oil residue, wet spots, and drips. We use a bright light and mirror to inspect hard-to-see areas. We inspect the oil cooler, oil pan, rear main seal, front seal, valve covers, and turbocharger oil lines.<\/span><\/p>\n<h3><span class=\"\">2. UV Dye Test \u2013 The Most Accurate Method<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We add UV dye to the engine oil and run the engine to operating temperature. Using a UV light, we can trace the dye to the exact source of the leak. This is the most accurate method for identifying oil leaks, especially when the source is not obvious.<\/span><\/p>\n<h3><span class=\"\">3. Oil Level and Condition Check<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We check the oil level and inspect the oil for contamination, which can indicate internal issues. Low oil level can indicate a leak, while contaminated oil can indicate internal problems.<\/span><\/p>\n<h3><span class=\"\">4. Component-Specific Inspection<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We inspect specific components like the oil cooler, oil pan, rear main seal, and turbocharger oil lines for signs of leakage. This includes checking fittings, gaskets, and seals.<\/span><\/p>\n<h3><span class=\"\">5. Crankcase Pressure Test<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We test crankcase pressure to identify potential PCV system issues that can cause oil leaks. High crankcase pressure can force oil past seals.<\/span><\/p>\n<h3><span class=\"\">6. Documentation<\/span><\/h3>\n<p class=\"ds-markdown-paragraph\"><span class=\"\">We document our findings with photographs, helping you understand exactly what was found and why we recommend specific repairs.<br \/><\/span><\/p>\n<p><span class=\"\">Noticing oil spots under your Duramax? Don&#8217;t let a small oil leak become a major engine problem.\u00a0<\/span><strong><span class=\"\">Call Creech Import at 919-872-1999<\/span><\/strong><span class=\"\">\u00a0for a professional Duramax oil leak diagnosis. Visit us at\u00a0<\/span><strong><span class=\"\">1818 St. Albans Dr #106, Raleigh, NC 27609<\/span><\/strong><span class=\"\">\u00a0or book online at\u00a0<\/span><a href=\"https:\/\/www.creechimport.com\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"\">https:\/\/www.creechimport.com\/contact<\/span><\/a><span class=\"\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1239a672 e-flex e-con-boxed e-con e-parent\" data-id=\"1239a672\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fd33fd4 elementor-widget elementor-widget-heading\" data-id=\"fd33fd4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-146068dc e-flex e-con-boxed e-con e-parent\" data-id=\"146068dc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6384bacc elementor-widget elementor-widget-n-accordion\" data-id=\"6384bacc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1660\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1660\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What causes Duramax 6.6L oil leaks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1660\" class=\"elementor-element elementor-element-26646799 e-con-full e-flex e-con e-child\" data-id=\"26646799\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1660\" class=\"elementor-element elementor-element-75d099fa e-flex e-con-boxed e-con e-child\" data-id=\"75d099fa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-62e0dc68 elementor-widget elementor-widget-text-editor\" data-id=\"62e0dc68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Common causes include engine oil cooler seal failure, oil pan gasket leaks, rear main seal wear, valve cover gasket leaks, and turbocharger oil line leaks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1661\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1661\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What are the symptoms of a Duramax oil leak? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1661\" class=\"elementor-element elementor-element-32d3c36e e-con-full e-flex e-con e-child\" data-id=\"32d3c36e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1661\" class=\"elementor-element elementor-element-50422c62 e-flex e-con-boxed e-con e-child\" data-id=\"50422c62\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-74b8dddd elementor-widget elementor-widget-text-editor\" data-id=\"74b8dddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Symptoms include oil spots under the vehicle, low oil level, burning oil smell, and oil pressure warning lights.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1662\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1662\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\">  How does Creech Import diagnose Duramax oil leaks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1662\" class=\"elementor-element elementor-element-6ec8026d e-con-full e-flex e-con e-child\" data-id=\"6ec8026d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1662\" class=\"elementor-element elementor-element-1bdea4e4 e-flex e-con-boxed e-con e-child\" data-id=\"1bdea4e4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6f4f814d elementor-widget elementor-widget-text-editor\" data-id=\"6f4f814d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">We use visual inspection, UV dye testing, pressure testing, and component inspection to identify the exact source of the leak.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1663\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1663\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Is an oil leak on a Duramax a serious problem? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1663\" class=\"elementor-element elementor-element-304564bf e-flex e-con-boxed e-con e-child\" data-id=\"304564bf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1663\" class=\"elementor-element elementor-element-181b007c e-con-full e-flex e-con e-child\" data-id=\"181b007c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4fd35e01 elementor-widget elementor-widget-text-editor\" data-id=\"4fd35e01\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Yes \u2013 if left unaddressed, an oil leak can lead to low oil pressure, engine wear, and potentially catastrophic failure.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1664\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1664\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\">  Can I drive with a Duramax oil leak? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1664\" class=\"elementor-element elementor-element-7a31d2b8 e-flex e-con-boxed e-con e-child\" data-id=\"7a31d2b8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1664\" class=\"elementor-element elementor-element-634d34fd e-con-full e-flex e-con e-child\" data-id=\"634d34fd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a0277bc elementor-widget elementor-widget-text-editor\" data-id=\"3a0277bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">If the leak is minor and you monitor oil levels, you may be able to drive for a short time. However, any oil leak should be diagnosed and repaired as soon as possible.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1665\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"6\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1665\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What is the engine oil cooler seal on a Duramax? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1665\" class=\"elementor-element elementor-element-167088ab e-flex e-con-boxed e-con e-child\" data-id=\"167088ab\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1665\" class=\"elementor-element elementor-element-7b0d7f66 e-con-full e-flex e-con e-child\" data-id=\"7b0d7f66\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73fb796a elementor-widget elementor-widget-text-editor\" data-id=\"73fb796a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">The engine oil cooler seal is a seal that prevents oil from leaking from the oil cooler. It is a common leak point on L5P engines.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1666\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"7\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1666\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What is the rear main seal on a Duramax? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1666\" class=\"elementor-element elementor-element-7a1b4c44 e-flex e-con-boxed e-con e-child\" data-id=\"7a1b4c44\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1666\" class=\"elementor-element elementor-element-538d2d7d e-con-full e-flex e-con e-child\" data-id=\"538d2d7d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7fb5623d elementor-widget elementor-widget-text-editor\" data-id=\"7fb5623d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">The rear main seal is located at the back of the crankshaft, where it connects to the transmission. It is one of the most expensive oil leaks to repair.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1667\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"8\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1667\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Does Creech Import offer a warranty on Duramax oil leak repairs? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1667\" class=\"elementor-element elementor-element-4b4298c5 e-flex e-con-boxed e-con e-child\" data-id=\"4b4298c5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1667\" class=\"elementor-element elementor-element-344ae3ef e-con-full e-flex e-con e-child\" data-id=\"344ae3ef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48c83df2 elementor-widget elementor-widget-text-editor\" data-id=\"48c83df2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Yes \u2013 all repairs include a written warranty on parts and labor.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1668\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"9\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1668\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How can I prevent Duramax oil leaks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1668\" class=\"elementor-element elementor-element-6610e3fd e-flex e-con-boxed e-con e-child\" data-id=\"6610e3fd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1668\" class=\"elementor-element elementor-element-1bd5e631 e-con-full e-flex e-con e-child\" data-id=\"1bd5e631\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-248c55eb elementor-widget elementor-widget-text-editor\" data-id=\"248c55eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Regular maintenance, including oil changes with high-quality diesel oil and periodic inspections, can help prevent oil leaks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1669\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"10\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1669\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\">  What is the difference between an oil leak and oil consumption? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1669\" class=\"elementor-element elementor-element-21770fcc e-flex e-con-boxed e-con e-child\" data-id=\"21770fcc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1669\" class=\"elementor-element elementor-element-7e19e119 e-con-full e-flex e-con e-child\" data-id=\"7e19e119\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-380e752e elementor-widget elementor-widget-text-editor\" data-id=\"380e752e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">An oil leak is visible oil escaping from the engine. Oil consumption is oil being burned inside the engine, which may not be visible as a leak.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-16610\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"11\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-16610\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Can a clogged PCV system cause oil leaks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16610\" class=\"elementor-element elementor-element-b785a32 e-flex e-con-boxed e-con e-child\" data-id=\"b785a32\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16610\" class=\"elementor-element elementor-element-fc5228e e-con-full e-flex e-con e-child\" data-id=\"fc5228e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6084ccf elementor-widget elementor-widget-text-editor\" data-id=\"6084ccf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Yes \u2013 a clogged PCV system can increase crankcase pressure, forcing oil past seals and causing leaks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-16611\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"12\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-16611\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How much does it cost to fix a Duramax oil leak? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16611\" class=\"elementor-element elementor-element-97ee750 e-flex e-con-boxed e-con e-child\" data-id=\"97ee750\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16611\" class=\"elementor-element elementor-element-efbed43 e-con-full e-flex e-con e-child\" data-id=\"efbed43\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f8bf048 elementor-widget elementor-widget-text-editor\" data-id=\"f8bf048\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Repair costs vary depending on the source of the leak. Creech Import provides written estimates before any work begins.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-16612\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"13\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-16612\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\">  Does the Duramax warranty cover oil leaks? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16612\" class=\"elementor-element elementor-element-98fd546 e-flex e-con-boxed e-con e-child\" data-id=\"98fd546\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16612\" class=\"elementor-element elementor-element-ff95660 e-con-full e-flex e-con e-child\" data-id=\"ff95660\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-be4994e elementor-widget elementor-widget-text-editor\" data-id=\"be4994e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Oil leaks may be covered under warranty if the vehicle is within the warranty period and the leak is due to a manufacturing defect.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-16613\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"14\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-16613\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\">  What is the most common Duramax oil leak source? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16613\" class=\"elementor-element elementor-element-3870d3c e-flex e-con-boxed e-con e-child\" data-id=\"3870d3c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16613\" class=\"elementor-element elementor-element-b8a931d e-con-full e-flex e-con e-child\" data-id=\"b8a931d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90dd869 elementor-widget elementor-widget-text-editor\" data-id=\"90dd869\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">The engine oil cooler seal is the most common oil leak source on L5P Duramax engines.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-16614\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"15\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-16614\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How long does Duramax oil leak repair take? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16614\" class=\"elementor-element elementor-element-e6bb1d6 e-flex e-con-boxed e-con e-child\" data-id=\"e6bb1d6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-16614\" class=\"elementor-element elementor-element-f4ce054 e-con-full e-flex e-con e-child\" data-id=\"f4ce054\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1e0882b elementor-widget elementor-widget-text-editor\" data-id=\"1e0882b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Repair time varies depending on the source of the leak. Simple repairs take 1-2 days; more complex repairs (like rear main seal) take 3-5 days.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5eb3645c e-flex e-con-boxed e-con e-parent\" data-id=\"5eb3645c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f2a3de1 elementor-widget elementor-widget-heading\" data-id=\"7f2a3de1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sources<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-349c8960 elementor-widget elementor-widget-text-editor\" data-id=\"349c8960\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul> <li><a href=\"https:\/\/www.nhtsa.gov\" target=\"_blank\" rel=\"noopener\">NHTSA \u2013 National Highway Traffic Safety Administration<\/a><\/li> <li><a href=\"https:\/\/www.carcomplaints.com\" target=\"_blank\" rel=\"noopener\">CarComplaints.com \u2013 GM Owner Complaints<\/a><\/li> <li><a href=\"https:\/\/www.jdpower.com\" target=\"_blank\" rel=\"noopener\">J.D. Power \u2013 Vehicle Reliability Ratings<\/a><\/li> <li><a href=\"https:\/\/repairpal.com\" target=\"_blank\" rel=\"noopener\">RepairPal \u2013 Real Repair Cost Estimates<\/a><\/li> <li><a href=\"https:\/\/gm-techlink.com\" target=\"_blank\" rel=\"noopener\">GM-TechLink \u2013 Official GM Technical Bulletins<\/a><\/li> <li><a href=\"https:\/\/apnews.com\" target=\"_blank\" rel=\"noopener\">AP News \u2013 Auto Industry News<\/a><\/li> <\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36a8e5f0 elementor-widget elementor-widget-heading\" data-id=\"36a8e5f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Choose Creech Import Repair for Your Vehicle?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbf968d elementor-widget elementor-widget-text-editor\" data-id=\"cbf968d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-814dc1b e-flex e-con-boxed e-con e-parent e-lazyloaded\" data-id=\"814dc1b\" data-element_type=\"container\" data-e-type=\"container\"><div class=\"e-con-inner\"><div class=\"elementor-element elementor-element-bdfddab elementor-widget elementor-widget-heading\" data-id=\"bdfddab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\"><div class=\"elementor-widget-container\"><h2 class=\"elementor-heading-title elementor-size-default\"><strong style=\"font-size: 16px;\"><span class=\"\">Serving Raleigh since 1993<\/span><\/strong><span class=\"\" style=\"font-size: 16px;\">\u00a0\u2013 Family\u2011owned, deeply rooted in the community.<\/span><\/h2><\/div><\/div><\/div><\/div><div class=\"elementor-element elementor-element-c7ee092 e-flex e-con-boxed e-con e-parent e-lazyloaded\" data-id=\"c7ee092\" data-element_type=\"container\" data-e-type=\"container\"><div class=\"e-con-inner\"><div class=\"elementor-element elementor-element-40feb64 elementor-widget elementor-widget-text-editor\" data-id=\"40feb64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><p class=\"ds-markdown-paragraph\"><span class=\"\">\u2713\u00a0<\/span><strong><span class=\"\">ASE\u2011Certified Technicians<\/span><\/strong><span class=\"\">\u00a0\u2013 Trained on domestic and import vehicles.<\/span><br \/><span class=\"\">\u2713\u00a0<\/span><strong><span class=\"\">Both domestic and import expertise<\/span><\/strong><span class=\"\">\u00a0\u2013 One trusted shop for mixed garages.<\/span><br \/><span class=\"\">\u2713\u00a0<\/span><strong><span class=\"\">Transparent pricing &amp; electronic approvals<\/span><\/strong><span class=\"\">\u00a0\u2013 No surprises, no unnecessary work.<\/span><br \/><span class=\"\">\u2713\u00a0<\/span><strong><span class=\"\">Professional\u2011grade diagnostic equipment<\/span><\/strong><span class=\"\">\u00a0\u2013 Advanced scanners and live data analysis.<\/span><br \/><span class=\"\">\u2713\u00a0<\/span><strong><span class=\"\">High\u2011quality parts &amp; long\u2011lasting repairs<\/span><\/strong><span class=\"\">\u00a0\u2013 We don\u2019t cut corners.<\/span><\/p><h2><span class=\"\">\ud83d\udcde Schedule Your\u00a0 Service Appointment Today<\/span><\/h2><p class=\"ds-markdown-paragraph\"><span class=\"\">Don\u2019t wait until a small problem becomes a major repair. Whether you need routine maintenance, diagnostics, or major repairs, the team at\u00a0<\/span><strong><span class=\"\">Creech Import Repair<\/span><\/strong><span class=\"\">\u00a0is ready to help.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">\ud83d\udccd\u00a0<\/span><strong><span class=\"\">Address:<\/span><\/strong><span class=\"\">\u00a01818 St. Albans Dr #106, Raleigh, NC 27609<\/span><br \/><span class=\"\">\ud83d\udcde\u00a0<\/span><strong><span class=\"\">Phone:<\/span><\/strong><span class=\"\">\u00a0<\/span><a target=\"_blank\" rel=\"noreferrer\"><span class=\"\">919-872-1999<\/span><\/a><br \/><span class=\"\">\ud83c\udf10\u00a0<\/span><strong><span class=\"\">Schedule Online:<\/span><\/strong><span class=\"\">\u00a0<\/span><a href=\"https:\/\/www.creechimport.com\/chevrolet-silverado-1500-repair-services\" target=\"_blank\" rel=\"noopener noreferrer\"><span class=\"\">https:\/\/www.creechimport.com\/chevrolet-silverado-1500-repair-services\u00a0<\/span><\/a><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">About the Author:<\/span><\/strong><span class=\"\">\u00a0The ASE\u2011certified team at Creech Import Repair has been serving Raleigh drivers since 1993. We specialize in both domestic and import vehicles, with extensive experience in Chevrolet Silverado 1500 repair and maintenance.<\/span><\/p><p class=\"ds-markdown-paragraph\"><em><span class=\"\">Last updated: May 2026. Repair costs are estimates and may vary. Always obtain a written estimate before authorizing repairs.<\/span><\/em><\/p><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Duramax 6.6L oil leaks are a known concern for owners of 2024-2026 Silverado 2500HD\/3500HD and Sierra 2500HD\/3500HD trucks equipped with the 6.6L Duramax diesel engine (RPO L5P). These oil leaks can occur from the engine oil cooler seal, oil pan gasket, rear main seal, or other locations, and if left unaddressed, they can lead to [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":2874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[35,885,863],"tags":[881,914,910,913,911,915,912],"class_list":["post-2712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vehicles","category-duramax","category-raleigh-truck-repair","tag-6-6l-duramax","tag-diesel-engine-diagnosis","tag-duramax-oil-leak","tag-l5p-engine","tag-oil-cooler-seal","tag-sierra-hd","tag-silverado-hd"],"_links":{"self":[{"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/posts\/2712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/comments?post=2712"}],"version-history":[{"count":18,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/posts\/2712\/revisions"}],"predecessor-version":[{"id":2778,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/posts\/2712\/revisions\/2778"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/media\/2874"}],"wp:attachment":[{"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/media?parent=2712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/categories?post=2712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.creechimport.com\/blog\/wp-json\/wp\/v2\/tags?post=2712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}