{"id":751,"date":"2026-07-04T02:16:44","date_gmt":"2026-07-04T06:16:44","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-chevrolet-caprice-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-07-04T02:16:44","modified_gmt":"2026-07-04T06:16:44","slug":"1985-chevrolet-caprice-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-chevrolet-caprice-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1985 Chevrolet Caprice 5.7L Diesel Maintenance Guide | Oil & Filter Specs"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 1985 Chevrolet Caprice with the 5.7L 8-cylinder Diesel engine (Engine Code N), the oil capacity is 7 quarts<\/strong> (including filter replacement). Recommended viscosities depend on ambient temperature: 10W-30<\/strong> for temperatures below 16\u00b0C, 15W-40<\/strong> for -18\u00b0C to 16\u00b0C, and SAE 30<\/strong> is preferred for temperatures above 0\u00b0C. AMSOIL recommends Signature Series 10W-30 Max-Duty Diesel Oil<\/a> and the EAO64-EA Oil Filter<\/a>.<\/p>\n

What oil does a 1985 Chevrolet Caprice 5.7L Diesel take?<\/h2>\n

The engine requires an oil with a CF grade specification. The appropriate viscosity is determined by your operating environment: use 10W-30 for temperatures below 16\u00b0C, 15W-40 for the range of -18\u00b0C to 16\u00b0C, and SAE 30 is preferred when temperatures are above 0\u00b0C.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle lookup, the following AMSOIL products are recommended for your 1985 Chevrolet Caprice Diesel.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series Max-Duty Diesel Oil<\/td>\n10W-30<\/a><\/td>\nDTTQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 10W-30 Heavy-Duty Synthetic Diesel Oil<\/td>\n10W-30<\/a><\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series Max-Duty Diesel Oil<\/td>\n5W-30<\/a><\/td>\nDHDQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Filter<\/h3>\n
\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO64-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Antifreeze<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Passenger Car & Light Truck Antifreeze\/Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Propylene Glycol Antifreeze\/Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Automatic Transmission Fluid<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series Fuel-Efficient 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<\/h3>\n
\n\n\n\n\n\n\n
Parameter<\/th>\nSpecification\/Value<\/th>\n<\/tr>\n
Oil Grade<\/td>\nCF<\/td>\n<\/tr>\n
Viscosity (Below 16\u00b0C)<\/td>\n10W-30<\/td>\n<\/tr>\n
Viscosity (-18 to 16\u00b0C)<\/td>\n15W-40<\/td>\n<\/tr>\n
Viscosity (Above 0\u00b0C)<\/td>\nSAE 30 (Preferred)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Capacity & Torque<\/h3>\n
\n\n\n\n\n
Component<\/th>\nCapacity\/Torque<\/th>\n<\/tr>\n
Oil Capacity (with filter)<\/td>\n7 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n30 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Automatic Transmission Fluid Specifications<\/h2>\n

The transmission requires fluid meeting the AF6 specification. Note that manufacturer technical service bulletins have updated this specification from Dexron II or III to Dexron VI.<\/p>\n

Transmission Capacities<\/h3>\n
\n\n\n\n\n\n
Transmission Type<\/th>\nTotal Fill<\/th>\nInitial Fill<\/th>\n<\/tr>\n
4-speed THM700-R4<\/td>\n10.9 quarts<\/td>\n5 quarts<\/td>\n<\/tr>\n
3-speed THM200C<\/td>\n9.4 quarts<\/td>\n3.5 quarts<\/td>\n<\/tr>\n
4-speed THM200-4R<\/td>\n11 quarts<\/td>\n5 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant Specifications<\/h2>\n

The cooling system capacity is 18.5 quarts. AMSOIL offers both pre-mixed and concentrated options for this application.<\/p>\n

\n\n\n\n\n
Product Type<\/th>\nFormulation Note<\/th>\n<\/tr>\n
Ethylene Glycol 50\/50 Pre-mix<\/td>\nReady to use<\/td>\n<\/tr>\n
Propylene Glycol Concentrated<\/td>\nRequires mixing with distilled or high-quality water<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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