1991 Dodge Ram 50 Oil Type & Capacity: 5W-20 (5.5 quarts)
The 1991 Dodge Ram 50 takes 5W-20 motor oil — 5.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-20 — 5.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2D Pickup Extra Cab, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup Extra Cab, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 2.4 W, 4WD, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 2.4 W, 4WD, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 2.4 W, RWD, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 2.4 W, RWD, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 3.0 S, Automatic — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Base, 2D Pickup, 3.0 S, Standard — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| LE, 2.4 W, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| LE, 2.4 W, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| LE, 3.0 S, Automatic — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| LE, 3.0 S, Standard — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup Extra Cab, Automatic — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup Extra Cab, Standard — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup, 2.4 W, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup, 2.4 W, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup, 3.0 S, Automatic — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| SE, 2D Pickup, 3.0 S, Standard — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Sport, 2.4 W, Automatic — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Sport, 2.4 W, Standard — 2.4L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Sport, 3.0 S, Automatic — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
| Sport, 3.0 S, Standard — 3.0L Eng | API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F) | 5.50 QTS. | 5.00 QTS. | — |
More factory specs & repair guides for your Ram 50
🛞 1991 Dodge Ram 50 Tire Size & Pressure →🌧️ 1991 Dodge Ram 50 Wiper Blade Sizes →💡 1991 Dodge Ram 50 Light Bulb Sizes →📖 1991 Dodge Ram 50 Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
6.3 quarts (5.96 L) — Antifreeze Permanent-Type Coolant/High quality Ethylene Glycol Antifreeze. Includes: .5 qt. for coolant reserve tank.
Frequently asked questions
What type of oil does a 1991 Dodge Ram 50 take?
The 1991 Dodge Ram 50 takes 5W-20 motor oil (API - SAE 5W-20/30/40 (Below 60Deg.F), 10W-30/40/50 (Above -10Deg.F), 20W-20/40/50 (Above 32Deg.F)), per the factory service manual.
What is the oil capacity of a 1991 Dodge Ram 50?
The 1991 Dodge Ram 50 oil capacity is 5.5 quarts with a filter change, or 5.0 quarts without changing the filter.
How often should I change the oil in my 1991 Dodge Ram 50?
Most 1991 Dodge Ram 50 owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Dodge recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1991 Dodge Ram 50?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Dodge Ram 50. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.