{"id":212,"date":"2026-05-21T18:06:40","date_gmt":"2026-05-21T22:06:40","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2015-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-05-21T18:06:40","modified_gmt":"2026-05-21T22:06:40","slug":"2015-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2015-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2015 Chevrolet Silverado 3500 6.6L LML Diesel Oil & Filter Guide"},"content":{"rendered":"
\n
\n
\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2015 Chevrolet Silverado 3500 6.6L LML Diesel take?<\/h2>\n

For the 2015 Chevrolet Silverado 3500 with the 6.6L 8-cylinder LML Diesel Turbo engine, the recommended oil viscosity is SAE 15W-40 for temperatures above -18\u00b0C. For ambient temperatures below 0\u00b0F (-18\u00b0C), use 5W-40 to improve cold starting. The engine requires 10 quarts of oil with a filter change. AMSOIL recommends using Signature Series 15W-40 Max-Duty Diesel Oil<\/a> and an AMSOIL Oil Filter<\/a>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are specifically listed for the 2015 Chevrolet Silverado 3500 6.6L LML Diesel engine and related maintenance components.<\/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 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

Oil Specification:<\/strong> CJ-4<\/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>\nWIX Air Filter<\/td>\n49314-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

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

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

Oil Viscosity & Capacity<\/h3>\n
\n\n\n\n\n\n
Detail<\/th>\nSpecification<\/th>\n<\/tr>\n
Preferred Viscosity (Above -18\u00b0C)<\/td>\nSAE 15W-40<\/td>\n<\/tr>\n
Cold Start 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

Service Torque<\/h3>\n
\n\n\n\n
Component<\/th>\nTorque Value<\/th>\n<\/tr>\n
Oil Drain Plug<\/td>\n18 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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