{"id":276,"date":"2026-05-25T17:48:29","date_gmt":"2026-05-25T21:48:29","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2009-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-05-29T18:25:13","modified_gmt":"2026-05-29T22:25:13","slug":"2009-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2009-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2009 Chevrolet Silverado 3500 6.6L Duramax LMM 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 2009 Chevrolet Silverado 3500 6.6L Duramax take?<\/h2>\n

For the 2009 Chevrolet Silverado 3500 with the 6.6L LMM Diesel engine, the recommended oil viscosity is SAE 15W-40 for ambient temperatures above -18\u00b0C (0\u00b0F). For improved cold starting in temperatures below -18\u00b0C, use 5W-40. The engine requires an oil capacity of 10 quarts with a filter change. AMSOIL recommends using Signature Series 15W-40 Max-Duty Diesel Oil<\/a> or Heavy-Duty 15W-40 Synthetic Diesel Oil<\/a>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are specifically listed for your 2009 Chevrolet Silverado 3500 6.6L LMM Diesel engine and related maintenance needs.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nCode<\/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 100% Synthetic Diesel Oil<\/td>\n15W-40<\/a><\/td>\nADPQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note:<\/strong> 5W-40 is recommended for all temperatures when ambient conditions are below 0\u00b0F (-18\u00b0C).<\/p>\n

Oil & Air Filters<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nCode<\/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
AMSOIL PowerCore\u00ae Filter<\/td>\nP610875-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Transmission Fluids<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Passenger Car & Light Truck Antifreeze<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Propylene Glycol Antifreeze<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 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 vital for the Duramax LMM engine to manage thermal and mechanical stresses during heavy-duty operation.<\/p>\n

Oil Viscosity & Grade<\/h3>\n
\n\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n
Oil Grade<\/td>\nCJ-4<\/td>\n<\/tr>\n
Preferred Viscosity<\/td>\nSAE 15W-40 (Above -18\u00b0C)<\/td>\n<\/tr>\n
Cold Weather Viscosity<\/td>\n5W-40 (All temps below -18\u00b0C)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Capacity & Torque Specs<\/h3>\n
\n\n\n\n\n\n
Metric<\/th>\nValue<\/th>\n<\/tr>\n
Total Oil Capacity<\/td>\n10 quarts (with filter)<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n16 mm Hex – 62 ft\/lbs<\/td>\n<\/tr>\n
Alternative Drain Plug Torque<\/td>\n13 mm Hex – 18 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: Always check the oil level after refilling.<\/em><\/p>\n

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

Maintaining a Duramax diesel requires attention to several key systems to ensure longevity and performance.<\/p>\n