{"id":219,"date":"2026-05-22T06:41:33","date_gmt":"2026-05-22T10:41:33","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2015-gmc-savana-2500-6-6l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-05-22T06:41:33","modified_gmt":"2026-05-22T10:41:33","slug":"2015-gmc-savana-2500-6-6l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2015-gmc-savana-2500-6-6l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2015 GMC Savana 2500 6.6L Diesel Oil & Filter Guide | Duramax Maintenance"},"content":{"rendered":"
\n
\n
\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2015 GMC Savana 2500 6.6L Diesel take?<\/h2>\n

For the 2015 GMC Savana 2500 with the 6.6L 8-cylinder LGH M Diesel Turbo engine, the preferred viscosity is SAE 15W-40 for temperatures above -18\u00b0C (0\u00b0F). For improved cold starting in ambient temperatures below 0\u00b0F (-18\u00b0C), a 5W-40 viscosity is recommended. The engine requires an oil specification of CJ-4 and has a total capacity of 10 quarts including the filter.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 2015 GMC Savana 2500, here are the recommended high-performance fluids and filters to maintain your Duramax diesel engine and vehicle systems.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nPart Number<\/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 Recommendations<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Number<\/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

Transmission & Coolant Recommendations<\/h3>\n
\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Number<\/th>\n<\/tr>\n
Automatic Transmission<\/td>\nSignature Series Fuel-Efficient ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
Automatic Transmission<\/td>\nOE Fuel-Efficient ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n
Engine Coolant<\/td>\nPassenger Car & Light Truck Antifreeze<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Engine Coolant<\/td>\nPropylene 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 longevity of the 6.6L LGH M Diesel Turbo engine. Using the correct viscosity and capacity ensures that the turbocharger and internal components receive adequate protection under heavy loads.<\/p>\n

Oil Viscosity & Capacity<\/h3>\n
\n\n\n\n\n
Condition<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
Above -18\u00b0C (0\u00b0F)<\/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
\n\n\n\n\n
Metric<\/th>\nSpecification<\/th>\n<\/tr>\n
Oil Capacity<\/td>\n10 quarts (with filter replacement)<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n18 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant Capacities<\/h3>\n

Depending on your vehicle’s specific configuration, coolant capacities vary:<\/p>\n