{"id":724,"date":"2026-07-02T06:31:30","date_gmt":"2026-07-02T10:31:30","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1984-cadillac-seville-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-07-02T06:31:30","modified_gmt":"2026-07-02T10:31:30","slug":"1984-cadillac-seville-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1984-cadillac-seville-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1984 Cadillac Seville 5.7L Diesel Maintenance Guide: Oil & Fluid Specs"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 1984 Cadillac Seville with the 5.7L 8-cylinder Engine Code [N] Diesel, the oil capacity is 7 quarts<\/strong> (including filter replacement). Recommended viscosities include 10W-30<\/strong> for temperatures below 16\u00b0C, 15W-40<\/strong> for -18 to 16\u00b0C, and 30<\/strong> weight for continuous driving above 0\u00b0C. AMSOIL recommends using Signature Series 10W-30 Max-Duty Diesel Oil<\/a> and the EAO64-EA Oil Filter<\/a>.<\/p>\n

What oil does a 1984 Cadillac Seville 5.7L Diesel take?<\/h2>\n

The engine requires an oil with a CF specification. Depending on your operating temperature, you should select the appropriate viscosity: 10W-30 for temperatures below 16\u00b0C, 15W-40 for between -18 to 16\u00b0C, or a 30 weight oil for continuous driving above 0\u00b0C.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle specifications, AMSOIL provides several high-performance lubrication and filtration options to maintain this GM diesel engine.<\/p>\n

Engine Oil Options<\/h3>\n
\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>\n10W-30<\/a><\/td>\nDTTQT-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
AMSOIL Heavy-Duty 100% Synthetic Diesel Oil<\/td>\n10W-30<\/a><\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Filtration & Coolant<\/h3>\n
\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Oil Filter<\/td>\nAMSOIL Oil Filter<\/td>\nEAO64-EA<\/a><\/td>\n<\/tr>\n
Antifreeze<\/td>\nPassenger Car & Light Truck<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Antifreeze<\/td>\nPropylene Glycol Concentrate<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission & Gear Fluids<\/h3>\n
\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/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
Front Differential<\/td>\nSEVERE GEAR 80W-90<\/a><\/td>\nAGLPK-EA<\/a><\/td>\n<\/tr>\n
Front Differential<\/td>\nSEVERE GEAR 75W-90<\/a><\/td>\nSVGPK-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications<\/h3>\n