{"id":337,"date":"2026-06-01T03:20:17","date_gmt":"2026-06-01T07:20:17","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2012-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-01T03:20:17","modified_gmt":"2026-06-01T07:20:17","slug":"2012-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2012-chevrolet-silverado-2500-hd-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2012 Chevrolet Silverado 2500 HD 6.6L LML 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 2012 Chevrolet Silverado 2500 HD 6.6L LML Diesel take?<\/h2>\n

For the 2012 Chevrolet Silverado 2500 HD with the 6.6L 8-cylinder LML diesel engine, the recommended oil viscosity is SAE 15W-40 for temperatures above -18\u00b0C (0\u00b0F). When ambient temperatures drop below -18\u00b0C, use 5W-40 to improve cold starting. The engine requires an oil grade of CJ-4 and has a total capacity of 10 quarts with a filter change.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your GM Duramax engine, the following products are recommended to maintain peak performance and protect against heavy-duty wear.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nProduct 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> The AMSOIL lookup note specifies CJ-4 for this application.<\/p>\n

Oil Filter Recommendations<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Number\/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 Recommendations<\/h3>\n
\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nCode<\/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<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Proper lubrication is vital for the Duramax diesel engine to manage high-stress operating conditions. Always verify your specific temperature requirements before selecting a viscosity.<\/p>\n

Oil Viscosity and Capacity<\/h3>\n
\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 Start Viscosity (Below -18\u00b0C)<\/td>\n5W-40<\/td>\n<\/tr>\n
Oil Capacity (with filter)<\/td>\n10 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n18 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: After refilling, always check the oil level.<\/em><\/p>\n

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

Maintaining a 6.6L LML diesel requires attention to filtration and fluid integrity. Because these vehicles are often used for heavy towing or long-distance hauling, consistent service is critical.<\/p>\n