{"id":946,"date":"2026-07-12T17:49:47","date_gmt":"2026-07-12T21:49:47","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-volvo-740-2-4l-6-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-07-12T17:49:47","modified_gmt":"2026-07-12T21:49:47","slug":"1985-volvo-740-2-4l-6-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1985-volvo-740-2-4l-6-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"1985 Volvo 740 2.4L D24T Diesel Maintenance Guide: Oil & Filter Specs"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 1985 Volvo 740 equipped with the 2.4L 6-cylinder D24T turbo diesel engine, the oil capacity is 7.4 quarts<\/strong> (including a filter change). While various viscosities are listed for different temperatures, SAE 15W-40 is preferred<\/strong>. AMSOIL recommends using Signature Series 15W-40 100% Synthetic Max-Duty Diesel Oil<\/a> paired with an AMSOIL Oil Filter (EAO15-EA)<\/a> for optimal protection.<\/p>\n

What oil does a 1985 Volvo 740 2.4L D24T take?<\/h2>\n

The engine requires an oil with a CF specification. Depending on your operating temperature, different viscosities are recommended: 15W-40 is preferred for temperatures above -18\u00b0C, while 10W-30 is suitable for -25\u00b0C to 20\u00b0C. For temperatures below 20\u00b0C, 5W-30 is also listed.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 1985 Volvo 740, here are the recommended fluids and filters to maintain engine health and performance.<\/p>\n

Engine Oil & Filter<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
Signature Series 15W-40 Max-Duty Diesel Oil<\/a><\/td>\nDMEQT-EA<\/a><\/td>\n<\/tr>\n
15W-40 Heavy-Duty Synthetic Diesel Oil<\/a><\/td>\nADPQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Oil Filter<\/a><\/td>\nEAO15-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Brake Fluid<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nCode<\/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
DOT 3 and DOT 4 Synthetic Brake Fluid<\/a><\/td>\nBFLVCN-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Diesel Fuel Additives<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
Diesel Injector Clean<\/a><\/td>\nadfpcn-ea<\/a><\/td>\n<\/tr>\n
Diesel Cetane Boost<\/a><\/td>\nacbcn-ea<\/a><\/td>\n<\/tr>\n
Injector Clean + Cetane Boost<\/a><\/td>\nadscn-ea<\/a><\/td>\n<\/tr>\n
Diesel Cold Flow Additive<\/a><\/td>\naddcn-ea<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications<\/h3>\n
\n\n\n\n\n\n
Viscosity Range<\/th>\nNotes<\/th>\n<\/tr>\n
15W-40<\/td>\nPreferred for temperatures above -18\u00b0C<\/td>\n<\/tr>\n
10W-30<\/td>\nFor -25 to 20\u00b0C<\/td>\n<\/tr>\n
5W-30<\/td>\nFor below 20\u00b0C<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Specification:<\/strong> CF<\/p>\n

Engine Oil Capacity<\/h3>\n
\n\n\n\n
Condition<\/th>\nCapacity<\/th>\n<\/tr>\n
With Filter Change<\/td>\n7.4 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

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

Engine Oil Details<\/h2>\n

AMSOIL offers two primary synthetic options for this diesel engine, providing varying levels of protection and value.<\/p>\n

Premium Protection Option<\/h3>\n

AMSOIL Signature Series 15W-40 100% Synthetic Max-Duty Diesel Oil<\/strong> (DMEQT-EA<\/a>) is designed for extreme-pressure protection and can deliver up to 6X more wear protection based on Detroit Diesel DD13 Scuffing Test (DFS 93K222) using 5W-30 as a worst-case representation.<\/p>\n

Value Protection Option<\/h3>\n

AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/strong> (ADPQT-EA<\/a>) provides 4X more wear protection based on Detroit Diesel DD13 Scuffing Test (DFS 93K222) using 10W-30 as a worst-case representation.<\/p>\n

Maintenance Overview<\/h2>\n

Oil Filter Specifications<\/h3>\n

The AMSOIL Oil Filter<\/a> (EAO15-EA<\/a>) provides 99 percent filtering efficiency at 20 microns (in accordance with ISO SO 4548-12). It is designed to allow lower restriction and provide greater capacity for small, wear-causing contaminants.<\/p>\n

Coolant Specifications<\/h3>\n

The cooling system capacities vary by transmission type:<\/p>\n