{"id":581,"date":"2026-06-22T20:45:24","date_gmt":"2026-06-23T00:45:24","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-22T20:45:24","modified_gmt":"2026-06-23T00:45:24","slug":"2008-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2008 Chevrolet Silverado 2500 HD 6.6L Duramax Diesel Oil & Maintenance Guide"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2008 Chevrolet Silverado 2500 HD 6.6L Duramax take?<\/h2>\n

For the 2008 Chevrolet Silverado 2500 HD with the 6.6L LMM 1 Diesel Turbo engine, the recommended oil viscosity is SAE 15W-40 for temperatures above -18\u00b0C (0\u00b0F). For improved cold starting in ambient temperatures below 0\u00b0F (-18\u00b0C), use 5W-40. The engine requires an oil grade of CJ-4 and has a capacity of 10 quarts with a filter change.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for this vehicle, the following high-performance fluids and filters are recommended to support engine health and longevity.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nPart Number<\/th>\n<\/tr>\n
AMSOIL Signature Series Max-Duty Diesel Oil<\/td>\n15W-40<\/a><\/td>\nDMEQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Heavy-Duty Synthetic Diesel Oil<\/td>\n15W-40<\/a><\/td>\nADPQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: The AMSOIL lookup lists these products for the CJ-4 oil specification.<\/em><\/p>\n

Oil Filter Recommendations<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Number<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO52-EA<\/a><\/td>\n<\/tr>\n
WIX XP Oil Filter<\/td>\n57202XP-EA<\/a><\/td>\n<\/tr>\n
WIX Oil Filter<\/td>\n57202-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Other Essential Fluids & Filters<\/h3>\n
\n\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Number<\/th>\n<\/tr>\n
Air Filter<\/td>\nAMSOIL PowerCore\u00ae Filter<\/td>\nP610875-EA<\/a><\/td>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Passenger Car & Light Truck Antifreeze<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
Transmission Fluid<\/td>\nAMSOIL Signature Series Fuel-Efficient ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
Transmission Fluid<\/td>\nAMSOIL OE Fuel-Efficient ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications & Details<\/h2>\n

Proper lubrication is critical for the Duramax diesel engine to manage soot and maintain turbocharger health. Always verify your specific requirements against the owner’s manual.<\/p>\n

Oil Viscosity & Capacity<\/h3>\n
\n\n\n\n\n\n\n
Requirement<\/th>\nSpecification\/Value<\/th>\n<\/tr>\n
Oil Grade (Lookup)<\/td>\nCJ-4<\/td>\n<\/tr>\n
Preferred Viscosity (> -18\u00b0C)<\/td>\nSAE 15W-40<\/td>\n<\/tr>\n
Cold Start Viscosity (< -18\u00b0C)<\/td>\n5W-40<\/td>\n<\/tr>\n
Oil Capacity (with filter)<\/td>\n10 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Drain Plug Torque Specifications<\/h3>\n
\n\n\n\n\n
Plug Type<\/th>\nTorque Value<\/th>\n<\/tr>\n
16 mm Hex Oil Drain Plug<\/td>\n62 ft\/lbs<\/td>\n<\/tr>\n
13 mm Hex Oil Drain Plug<\/td>\n18 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Diesel maintenance notes for this vehicle<\/h2>\n

Maintaining a 6.6L Duramax requires attention to specialized diesel components. Owners should prioritize the following:<\/p>\n