{"id":831,"date":"2026-07-08T21:27:20","date_gmt":"2026-07-09T01:27:20","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1983-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-07-08T21:27:20","modified_gmt":"2026-07-09T01:27:20","slug":"1983-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1983-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1983 Oldsmobile Cutlass 5.7L Diesel Maintenance Guide: Oil & Fluid Specs"},"content":{"rendered":"
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AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 1983 Oldsmobile Cutlass 5.7L Diesel take?<\/h2>\n

For the 1983 Oldsmobile Cutlass with the 5.7L 8-cylinder Engine Code [N] Diesel, the required 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 using high-quality synthetic diesel oils like Signature Series 10W-30<\/a> or Signature Series 5W-30<\/a> for superior protection.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 1983 Oldsmobile Cutlass 5.7L Diesel, the following products are recommended to maintain engine and component health.<\/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 10W-30 100% Synthetic Max-Duty Diesel Oil<\/td>\n10W-30<\/a><\/td>\nDTTQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 10W-30 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\n10W-30<\/a><\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil<\/td>\n5W-30<\/a><\/td>\nDHDQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Specification:<\/strong> CF<\/p>\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 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>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL OE Fuel-Efficient 100% Synthetic ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: The AMSOIL lookup notes that for THM transmissions, the specification has been updated from Dexron II or III to Dexron VI per a manufacturer Technical Service Bulletin.<\/em><\/p>\n

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

Proper lubrication is critical for the longevity of the 5.7L diesel engine. Using the correct viscosity based on your climate prevents premature wear.<\/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\u00b0C to 16\u00b0C<\/td>\n15W-40<\/td>\n<\/tr>\n
Above 0\u00b0C<\/td>\nSAE 30 (Preferred)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Service Specifications<\/h3>\n