{"id":590,"date":"2026-06-23T08:31:24","date_gmt":"2026-06-23T12:31:24","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2014-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-23T08:31:24","modified_gmt":"2026-06-23T12:31:24","slug":"2014-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2014-chevrolet-silverado-3500-pickup-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2014 Chevrolet Silverado 3500 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 2014 Chevrolet Silverado 3500 6.6L Diesel take?<\/h2>\n

For the 2014 Chevrolet Silverado 3500 with the 6.6L 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 capacity of 10 quarts with a filter change. AMSOIL recommends the Signature Series 15W-40<\/a> for maximum protection.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup data, the following products are recommended for your GM Duramax 6.6L LML engine maintenance:<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series 15W-40 100% Synthetic Max-Duty Diesel Oil<\/td>\nDMEQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\nADPQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\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 & Coolant Recommendations<\/h3>\n
\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
Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/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 LML engine to maintain performance and longevity under heavy loads.<\/p>\n

Oil Viscosity & Grade<\/h3>\n
\n\n\n\n\n
Condition<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
Above -18\u00b0C<\/td>\nSAE 15W-40 (Preferred)<\/td>\n<\/tr>\n
Below -18\u00b0C (0\u00b0F)<\/td>\n5W-40 (For improved cold starting)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Specification:<\/strong> The AMSOIL lookup note identifies the oil grade as CJ-4.<\/p>\n

Capacity & Torque Specs<\/h3>\n
\n\n\n\n\n
Metric<\/th>\nValue<\/th>\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: Always check the oil level after refilling.<\/em><\/p>\n

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

Maintaining a 6.6L Duramax diesel requires attention to high-quality filtration and fluid management. Because these vehicles are often used for heavy-duty towing or hauling, maintenance schedules may be more rigorous than light-duty trucks.<\/p>\n