{"id":262,"date":"2026-05-24T12:24:43","date_gmt":"2026-05-24T16:24:43","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1980-pontiac-bonneville-5-7l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-05-24T12:24:43","modified_gmt":"2026-05-24T16:24:43","slug":"1980-pontiac-bonneville-5-7l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1980-pontiac-bonneville-5-7l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1980 Pontiac Bonneville 5.7L Diesel (Code N) Oil & Maintenance Guide"},"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 Pontiac Bonneville 5.7L Diesel take?<\/h2>\n

For the 1980 Pontiac Bonneville with the 5.7L 8-cylinder Engine Code [N] N Diesel, the engine requires an oil capacity of 7 quarts<\/strong> (including filter change). Recommended viscosities include 10W-30<\/strong> for temperatures below 16\u00b0C, 15W-40<\/strong> for -18 to 16\u00b0C, and 30<\/strong> weight is preferred for continuous driving above 0\u00b0C. AMSOIL recommends Signature Series 10W-30 Max-Duty Diesel Oil<\/a> or Signature Series 5W-30 Max-Duty Diesel Oil<\/a>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are recommended for your 1980 Pontiac Bonneville 5.7L Diesel based on the provided 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
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

Note: Oil Grade specification is CF.<\/em><\/p>\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
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

Transmission Fluid<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/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

Gear Lube<\/h3>\n
\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL SEVERE GEAR\u00ae 80W-90 100% Synthetic Gear Lube<\/td>\nAGLPK-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 environment 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 (Continuous Driving)<\/td>\n30<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Service Specifications<\/h3>\n