1985 Dodge Ram 50 Oil Type & Capacity

The 1985 Dodge Ram 50 oil type depends on the engine: the Custom, 2.0 D, Automatic takes 5W-20 (4.2 quarts with filter); the Custom, 2.0 D, Standard takes 5W-20 (4.2 quarts with filter); the Custom, 2.6 E, Automatic takes 5W-20 (6.1 quarts with filter); the Custom, 2.6 E, Standard takes 5W-20 (6.1 quarts with filter); the Royal, 2.3 J, 4WD takes 5W-20 (6.8 quarts with filter); the Royal, 2.3 J, RWD takes 5W-20 (6.8 quarts with filter); the Royal, 2.6 E, 4WD, Automatic takes 5W-20 (6.1 quarts with filter); the Royal, 2.6 E, 4WD, Standard takes 5W-20 (6.1 quarts with filter); the Royal, 2.6 E, RWD, Automatic takes 5W-20 (6.1 quarts with filter); the Royal, 2.6 E, RWD, Standard takes 5W-20 (6.1 quarts with filter); the Sport, 4WD, Automatic takes 5W-20 (6.1 quarts with filter); the Sport, 4WD, Standard takes 5W-20 (6.1 quarts with filter); the Sport, RWD, Automatic takes 5W-20 (6.1 quarts with filter); the Sport, RWD, Standard takes 5W-20 (6.1 quarts with filter), per the factory service manual.

Factory-spec answer

It depends on the engine:

Oil capacity by engine

EngineOil Type (viscosity)Capacity w/ FilterCapacity w/o FilterNotes
Custom, 2.0 D, Automatic — 2.0L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)4.20 QTS.3.70 QTS.
Custom, 2.0 D, Standard — 2.0L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)4.20 QTS.3.70 QTS.
Custom, 2.6 E, Automatic — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Custom, 2.6 E, Standard — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Royal, 2.3 J, 4WD — 2.3L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.80 QTS.5.20 QTS.
Royal, 2.3 J, RWD — 2.3L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.80 QTS.5.20 QTS.
Royal, 2.6 E, 4WD, Automatic — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Royal, 2.6 E, 4WD, Standard — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Royal, 2.6 E, RWD, Automatic — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Royal, 2.6 E, RWD, Standard — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Sport, 4WD, Automatic — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Sport, 4WD, Standard — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Sport, RWD, Automatic — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.
Sport, RWD, Standard — 2.6L EngAPI - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-40/50/20 (Above 32Deg.F)6.10 QTS.4.80 QTS.

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More specs & repair guides for your Ram 50

1985 Dodge Ram 50 factory service manualAll fluid capacities (transmission, coolant, brakes)

Powered by factory manual data from our partner site AllOEMManuals.com.

Coolant capacity

9.5 quarts (8.99 L) — 50/50 mixture of water and Ethylene-Glycol Base Antifreeze, such as MOPAR, PRESTON II, PEAK, or antifreeze containing the Alugard 340-2 inhibitor system.

Frequently asked questions

What type of oil does a 1985 Dodge Ram 50 take?

It depends on the engine: Custom, 2.0 D, Automatic uses 5W-20; Custom, 2.0 D, Standard uses 5W-20; Custom, 2.6 E, Automatic uses 5W-20; Custom, 2.6 E, Standard uses 5W-20; Royal, 2.3 J, 4WD uses 5W-20; Royal, 2.3 J, RWD uses 5W-20; Royal, 2.6 E, 4WD, Automatic uses 5W-20; Royal, 2.6 E, 4WD, Standard uses 5W-20; Royal, 2.6 E, RWD, Automatic uses 5W-20; Royal, 2.6 E, RWD, Standard uses 5W-20; Sport, 4WD, Automatic uses 5W-20; Sport, 4WD, Standard uses 5W-20; Sport, RWD, Automatic uses 5W-20; Sport, RWD, Standard uses 5W-20.

How much oil does a 1985 Dodge Ram 50 take?

Capacity depends on the engine: Custom, 2.0 D, Automatic holds 4.2 quarts with filter; Custom, 2.0 D, Standard holds 4.2 quarts with filter; Custom, 2.6 E, Automatic holds 6.1 quarts with filter; Custom, 2.6 E, Standard holds 6.1 quarts with filter; Royal, 2.3 J, 4WD holds 6.8 quarts with filter; Royal, 2.3 J, RWD holds 6.8 quarts with filter; Royal, 2.6 E, 4WD, Automatic holds 6.1 quarts with filter; Royal, 2.6 E, 4WD, Standard holds 6.1 quarts with filter; Royal, 2.6 E, RWD, Automatic holds 6.1 quarts with filter; Royal, 2.6 E, RWD, Standard holds 6.1 quarts with filter; Sport, 4WD, Automatic holds 6.1 quarts with filter; Sport, 4WD, Standard holds 6.1 quarts with filter; Sport, RWD, Automatic holds 6.1 quarts with filter; Sport, RWD, Standard holds 6.1 quarts with filter.

Can I use synthetic oil in my 1985 Dodge Ram 50?

Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 Dodge Ram 50. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

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