{"id":268,"date":"2026-05-25T09:44:23","date_gmt":"2026-05-25T13:44:23","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-chevrolet-silverado-3500-6-6l-duramax-diesel-oil-filter-guide\/"},"modified":"2026-05-25T09:44:23","modified_gmt":"2026-05-25T13:44:23","slug":"2008-chevrolet-silverado-3500-6-6l-duramax-diesel-oil-filter-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-chevrolet-silverado-3500-6-6l-duramax-diesel-oil-filter-guide\/","title":{"rendered":"2008 Chevrolet Silverado 3500 6.6L Duramax Diesel Oil & Filter Guide"},"content":{"rendered":"
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AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2008 Chevrolet Silverado 3500 6.6L Duramax take?<\/h2>\n

The 2008 Chevrolet Silverado 3500 with the 6.6L LMM Diesel Turbo engine requires an oil viscosity of SAE 15W-40 for temperatures above -18\u00b0C (0\u00b0F). For ambient temperatures below -18\u00b0C, a 5W-40 viscosity is recommended to improve cold starting. The total oil capacity is 10 quarts when performing a change with the filter.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 2008 Chevrolet Silverado 3500, here are the recommended high-performance fluids and filters to maintain your Duramax engine.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series 100% Synthetic Max-Duty Diesel Oil<\/td>\n15W-40<\/a><\/td>\nDMEQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\n15W-40<\/a><\/td>\nADPQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Specification:<\/strong> The AMSOIL lookup note references CJ-4 for this application.<\/p>\n

Oil Filter Options<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/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

Air Filter & Coolant<\/h3>\n
\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Air Filter<\/td>\nAMSOIL PowerCore\u00ae Filter for GM 6.6L Duramax Diesel<\/td>\nP610875-EA<\/a><\/td>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission Fluid<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL OE Fuel-Efficient 100% Synthetic ATF<\/td>\nNot confirmed from source data<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Proper lubrication is vital for the Duramax LMM engine to manage high torque and heavy-duty workloads. Below are the technical specifications for your oil service.<\/p>\n

Oil Viscosity & Capacity<\/h3>\n
\n\n\n\n\n\n
Requirement<\/th>\nSpecification\/Value<\/th>\n<\/tr>\n
Preferred Viscosity (Above -18\u00b0C)<\/td>\nSAE 15W-40<\/td>\n<\/tr>\n
Cold Weather Viscosity (Below -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
13 mm Hex<\/td>\n18 ft\/lbs<\/td>\n<\/tr>\n
16 mm Hex<\/td>\n62 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

When servicing the 6.6L Duramax, always check the oil level after refilling to ensure accuracy. For heavy-duty applications involving towing or high-load scenarios, maintaining fluid integrity is critical for engine longevity. Owners should also monitor cooling system requirements and turbocharger health as part of a standard maintenance routine.<\/p>\n

Common diesel oil-related concerns and how AMSOIL products may help<\/h2>\n

Diesel engines face unique stresses such as soot loading and extreme temperatures. The following table outlines how specific AMSOIL products can support your engine’s performance.<\/p>\n

\n\n\n\n\n\n
Concern<\/th>\nWhy it matters<\/th>\nAMSOIL Product<\/th>\nHow it may help<\/th>\nLimitation<\/th>\n<\/tr>\n
Engine Wear<\/td>\nHigh-pressure environments cause friction.<\/td>\nDMEQT-EA<\/a><\/td>\nDelivers up to 6X more wear protection.<\/td>\nRequires regular oil changes.<\/td>\n<\/tr>\n
Filter Restriction<\/td>\nDirty filters reduce engine performance.<\/td>\nP610875-EA<\/a><\/td>\nLower initial restriction protects fuel economy.<\/td>\nMust be replaced per interval.<\/td>\n<\/tr>\n
Extreme Temperatures<\/td>\nAffects cold starts and viscosity.<\/td>\nDMEQT-EA<\/a><\/td>\nExcels in extreme temperatures.<\/td>\nNot confirmed for all temps from source.<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Common maintenance concerns for this vehicle<\/h2>\n

Based on owner reports and historical data, owners of the 2008 Silverado 3500 should be aware of several areas that may require attention:<\/p>\n