{"id":259,"date":"2026-05-24T11:43:36","date_gmt":"2026-05-24T15:43:36","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1980-oldsmobile-toronado-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-05-24T11:43:36","modified_gmt":"2026-05-24T15:43:36","slug":"1980-oldsmobile-toronado-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1980-oldsmobile-toronado-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1980 Oldsmobile Toronado 5.7L Diesel Oil & Filter Guide | AMSOIL"},"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 1980 Oldsmobile Toronado 5.7L Diesel take?<\/h2>\n

For the 1980 Oldsmobile Toronado with the 5.7L 8-cylinder Engine Code [N] Diesel, the engine requires an oil capacity of 7 quarts<\/strong> (including filter change). Recommended viscosities based on temperature include 10W-30<\/strong> (below 16\u00b0C), 15W-40<\/strong> (-18 to 16\u00b0C), or SAE 30<\/strong> (above 0\u00b0C), with SAE 30 being preferred. AMSOIL recommends using high-quality synthetic diesel oils like Signature Series 5W-30 Max-Duty Diesel Oil<\/a> or Signature Series 10W-30 Max-Duty Diesel Oil<\/a>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are recommended for your 1980 Oldsmobile Toronado diesel engine and related systems based on available application data.<\/p>\n

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

Oil Filter<\/h3>\n
\n\n\n\n
Product Name<\/th>\nPart Code<\/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>\nPart Code<\/th>\n<\/tr>\n
Passenger Car & Light Truck Antifreeze\/Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Propylene Glycol Antifreeze and Engine 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>\nPart Code<\/th>\n<\/tr>\n
Signature Series Fuel-Efficient ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
OE Fuel-Efficient ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Proper lubrication is critical for the longevity of the 5.7L diesel engine. Always verify your specific operating temperatures to select the correct viscosity.<\/p>\n

Oil Viscosity Guide<\/h3>\n
\n\n\n\n\n\n
Temperature Range<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
Below 16\u00b0C<\/td>\n10W-30<\/td>\n<\/tr>\n
-18 to 16\u00b0C<\/td>\n15W-40<\/td>\n<\/tr>\n
Above 0\u00b0C<\/td>\n30 (SAE 30 preferred)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Capacity & Torque<\/h3>\n
\n\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n
Capacity (with filter)<\/td>\n7 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n30 ft\/lbs<\/td>\n<\/tr>\n
Oil Grade (AMSOIL lookup)<\/td>\nCF<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission & Cooling Specifications<\/h2>\n

The 1980 Toronado utilizes specific transmission configurations that require careful fluid management.<\/p>\n

Automatic Transmission Details<\/h3>\n