{"id":400,"date":"2026-06-08T13:17:18","date_gmt":"2026-06-08T17:17:18","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1982-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-06-08T13:17:18","modified_gmt":"2026-06-08T17:17:18","slug":"1982-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1982-oldsmobile-cutlass-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1982 Oldsmobile Cutlass 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

What oil does a 1982 Oldsmobile Cutlass 5.7L Diesel take?<\/h2>\n

For the 1982 Oldsmobile Cutlass with the 5.7L 8-cylinder Engine Code [N] Diesel, the recommended oil viscosity depends on ambient temperature: 10W-30 is used below 16\u00b0C, 15W-40 between -18 to 16\u00b0C, and SAE 30 is preferred above 0\u00b0C. The engine requires 7 quarts of oil with a filter change. AMSOIL recommends using their Signature Series or Heavy-Duty synthetic diesel oils for superior protection.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle specifications, AMSOIL offers several high-performance lubrication options to maintain your 5.7L Diesel engine and transmission.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nProduct Code<\/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 Recommendation<\/h3>\n
\n\n\n\n
Product Name<\/th>\nProduct Code<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO64-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Transmission Fluid<\/h3>\n
\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nProduct Code<\/th>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
ATF<\/td>\nAMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
ATF<\/td>\nAMSOIL OE Fuel-Efficient 100% Synthetic 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. Ensure you match the viscosity to your operating environment.<\/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>\nSAE 30 (Preferred)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Capacity & Torque<\/h3>\n
\n\n\n\n\n
Description<\/th>\nSpecification<\/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 1982 Cutlass utilizes several different transmission models. Note that manufacturer technical service bulletins have updated these specifications from Dexron II or III to Dexron VI.<\/p>\n

Transmission Capacity & Models<\/h3>\n
\n\n\n\n\n\n\n
Transmission Model<\/th>\nInitial Fill<\/th>\nTotal Fill<\/th>\n<\/tr>\n
THM325-4L (4 speed)<\/td>\n3.2 quarts<\/td>\n10 quarts<\/td>\n<\/tr>\n
THM350C (3 speed)<\/td>\n3 quarts<\/td>\n10 quarts<\/td>\n<\/tr>\n
THM200-4R (4 speed)<\/td>\n5 quarts<\/td>\n11 quarts<\/td>\n<\/tr>\n
THM250C (3 speed)<\/td>\n4 quarts<\/td>\n10.8 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note:<\/strong> For these applications, the AMSOIL lookup references AF6 specifications via manufacturer technical service bulletins.<\/p>\n

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