{"id":653,"date":"2026-06-27T15:52:26","date_gmt":"2026-06-27T19:52:26","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1987-chevrolet-blazer-6-2l-8-cyl-diesel-maintenance-guide\/"},"modified":"2026-06-27T15:52:26","modified_gmt":"2026-06-27T19:52:26","slug":"1987-chevrolet-blazer-6-2l-8-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1987-chevrolet-blazer-6-2l-8-cyl-diesel-maintenance-guide\/","title":{"rendered":"1987 Chevrolet Blazer 6.2L Diesel 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 1987 Chevrolet Blazer 6.2L Diesel take?<\/h2>\n

For the 1987 Chevrolet Blazer with the 6.2L 8-cylinder diesel engine (Engine Code C), the recommended oil viscosity is SAE 5W-30, which is preferred for all temperatures. The engine oil capacity is 7 quarts when performing a service with a filter replacement. AMSOIL recommends using Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil<\/a> (DHDQT-EA<\/a>) for optimal protection.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle specifications, the following AMSOIL products are recommended for your maintenance needs:<\/p>\n

Engine Oil & Filter<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Signature Series 5W-30 Max-Duty Diesel Oil<\/a><\/td>\nDHDQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Oil Filter<\/a><\/td>\nEAO24-EA<\/a><\/td>\n<\/tr>\n
WIX Oil Filter<\/a><\/td>\n51061-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Transmission<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Passenger Car & Light Truck Antifreeze<\/a><\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Propylene Glycol Antifreeze<\/a><\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
Signature Series Synthetic ATF<\/a><\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
OE Fuel-Efficient Synthetic ATF<\/a><\/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 6.2L diesel engine. Below are the confirmed specifications from the AMSOIL lookup data.<\/p>\n

Oil Viscosity Options<\/h3>\n
\n\n\n\n\n\n
Condition<\/th>\nViscosity<\/th>\n<\/tr>\n
Above -18\u00b0C<\/td>\n10W-30<\/td>\n<\/tr>\n
Above 4\u00b0C<\/td>\n30<\/td>\n<\/tr>\n
All Temperatures<\/td>\n5W-30 (Preferred)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Capacity & Grade<\/h3>\n
\n\n\n\n\n
Detail<\/th>\nSpecification<\/th>\n<\/tr>\n
Capacity (with filter)<\/td>\n7 quarts<\/td>\n<\/tr>\n
Oil Grade<\/td>\nCF-4<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: Always check the oil level after refilling.<\/em><\/p>\n

Transmission Fluid Specifications<\/h2>\n

The 1987 Chevrolet Blazer utilizes different transmission configurations. Note that manufacturer technical service bulletins have updated the specification from Dexron II or III to Dexron VI for these applications.<\/p>\n

THM700-R4 (4-Speed)<\/h3>\n
\n\n\n\n\n
Type<\/th>\nCapacity<\/th>\n<\/tr>\n
Total Fill<\/td>\n11.5 quarts<\/td>\n<\/tr>\n
Initial Fill<\/td>\n5 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

THM400 (3-Speed)<\/h3>\n
\n\n\n\n\n
Type<\/th>\nCapacity<\/th>\n<\/tr>\n
Total Fill<\/td>\n10.6 quarts<\/td>\n<\/tr>\n
Initial Fill<\/td>\n4.3 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant Specifications<\/h2>\n

The cooling system requires a capacity of 25 quarts. AMSOIL offers both pre-mix and concentrated options.<\/p>\n