{"id":549,"date":"2026-06-20T06:05:48","date_gmt":"2026-06-20T10:05:48","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-mercedes-benz-300cd-3-0l-5-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-20T06:05:48","modified_gmt":"2026-06-20T10:05:48","slug":"1985-mercedes-benz-300cd-3-0l-5-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-mercedes-benz-300cd-3-0l-5-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"1985 Mercedes Benz 300cd Diesel Maintenance Guide: Oil & Fluid Specifications"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 1985 Mercedes Benz 300cd with the 3.0L 5-cylinder diesel engine, the oil capacity is 8.3 quarts (with filter). Recommended viscosities include 0W-30 and 0W-40 for all temperatures, 10W-40 for temperatures above -20\u00b0C, and 5W-30, 5W-40, or 5W-50 for temperatures above -25\u00b0C. AMSOIL recommends AMSOIL 5W-40 FS 100% Synthetic European Motor Oil<\/a> (EFMQT-EA<\/a>) for high-performance protection.<\/p>\n

What oil does a 1985 Mercedes Benz 300cd take?<\/h2>\n

The engine requires an oil with the AMSOIL lookup oil grade SEO41. Depending on your operating environment and temperature, several viscosities are appropriate for this 3.0L 5-cylinder diesel turbo engine.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup data, here are the recommended products for your 1985 Mercedes Benz 300cd maintenance needs.<\/p>\n

Engine Oil<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL 5W-40 FS 100% Synthetic European Motor Oil<\/td>\nEFMQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 0W-40 FS 100% Synthetic European Motor Oil<\/td>\nEFOQT-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

Automatic Transmission Fluid<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF<\/td>\nATFPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL OE Multi-Vehicle 100% Synthetic ATF<\/td>\nOTFQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Brake & Steering Fluids<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid<\/td>\nBFLVCN-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid<\/td>\nPSFCN-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Viscosity Options<\/h3>\n
\n\n\n\n\n\n
Temperature Condition<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
All Temperatures<\/td>\n0W-30, 0W-40<\/td>\n<\/tr>\n
Above -20\u00b0C<\/td>\n10W-40<\/td>\n<\/tr>\n
Above -25\u00b0C<\/td>\n5W-30, 5W-40, 5W-50<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Details<\/h3>\n

Oil Capacity:<\/strong> 8.3 quarts (with filter). Note that on models equipped with an oil cooler, additional oil may be required when the cooler is drained. Always allow 5 minutes after refilling or turning the engine off before checking the oil level.<\/p>\n

Drain Plug Torque:<\/strong> 20 ft\/lbs<\/p>\n

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

While AMSOIL provides high-quality synthetic options, specific filter recommendations are not available in the provided source data. Always verify your oil filter part number against your vehicle’s manual.<\/p>\n