1991 Dodge Ram Wagon Oil Type & Capacity
The 1991 Dodge Ram Wagon oil type depends on the engine: the B150, 3.9 X, Automatic takes 5W-30 (4.0 quarts qt with filter); the B150, 3.9 X, Standard takes 5W-30 (4.0 quarts qt with filter); the B150, 5.2 Y, 32RH takes 5W-30 (4.5 quarts qt with filter); the B150, 5.2 Y, 42RH takes 5W-30 (4.5 quarts qt with filter); the B150, 5.2 Y, A500 takes 5W-30 (4.5 quarts qt with filter); the B150, 5.2 Y, A999 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, 32RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, 36RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, 42RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, 46RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, A500 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, A518 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, A727 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.2 Y, A999 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.9 Z, 46RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger Extended, 5.9 Z, A518 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 3.9 X takes 5W-30 (4.0 quarts qt with filter); the B250, Van Passenger, 5.2 Y, 32RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, 36RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, 42RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, 46RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, A500 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, A518 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, A727 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.2 Y, A999 takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.9 Z, 46RH takes 5W-30 (4.5 quarts qt with filter); the B250, Van Passenger, 5.9 Z, A518 takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger Extended, 46RH takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger Extended, A518 takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.2 Y, 42RH takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.2 Y, 46RH takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.2 Y, A500 takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.2 Y, A518 takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.9 Z, 46RH takes 5W-30 (4.5 quarts qt with filter); the B350, Van Passenger, 5.9 Z, A518 takes 5W-30 (4.5 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- B150, 3.9 X, Automatic: 5W-30, 4.0 quarts with filter
- B150, 3.9 X, Standard: 5W-30, 4.0 quarts with filter
- B150, 5.2 Y, 32RH: 5W-30, 4.5 quarts with filter
- B150, 5.2 Y, 42RH: 5W-30, 4.5 quarts with filter
- B150, 5.2 Y, A500: 5W-30, 4.5 quarts with filter
- B150, 5.2 Y, A999: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, 32RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, 36RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, 42RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, 46RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, A500: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, A518: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, A727: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.2 Y, A999: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.9 Z, 46RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger Extended, 5.9 Z, A518: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 3.9 X: 5W-30, 4.0 quarts with filter
- B250, Van Passenger, 5.2 Y, 32RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, 36RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, 42RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, 46RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, A500: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, A518: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, A727: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.2 Y, A999: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.9 Z, 46RH: 5W-30, 4.5 quarts with filter
- B250, Van Passenger, 5.9 Z, A518: 5W-30, 4.5 quarts with filter
- B350, Van Passenger Extended, 46RH: 5W-30, 4.5 quarts with filter
- B350, Van Passenger Extended, A518: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.2 Y, 42RH: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.2 Y, 46RH: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.2 Y, A500: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.2 Y, A518: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.9 Z, 46RH: 5W-30, 4.5 quarts with filter
- B350, Van Passenger, 5.9 Z, A518: 5W-30, 4.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| B150, 3.9 X, Automatic — 3.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.00 QTS. | — | — |
| B150, 3.9 X, Standard — 3.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.00 QTS. | — | — |
| B150, 5.2 Y, 32RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B150, 5.2 Y, 42RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B150, 5.2 Y, A500 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B150, 5.2 Y, A999 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, 32RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, 36RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, 42RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, 46RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, A500 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, A518 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, A727 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.2 Y, A999 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.9 Z, 46RH — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger Extended, 5.9 Z, A518 — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 3.9 X — 3.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.00 QTS. | — | — |
| B250, Van Passenger, 5.2 Y, 32RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, 36RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, 42RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, 46RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, A500 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, A518 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, A727 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.2 Y, A999 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.9 Z, 46RH — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B250, Van Passenger, 5.9 Z, A518 — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger Extended, 46RH — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger Extended, A518 — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.2 Y, 42RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.2 Y, 46RH — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.2 Y, A500 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.2 Y, A518 — 5.2L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.9 Z, 46RH — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
| B350, Van Passenger, 5.9 Z, A518 — 5.9L Eng | API - SAE 5W-30 (Below 32Deg.F), 10W-30 (Above 0Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
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More factory specs & repair guides for your Ram Wagon
🛞 1991 Dodge Ram Wagon Tire Size & Pressure →🌧️ 1991 Dodge Ram Wagon Wiper Blade Sizes →💡 1991 Dodge Ram Wagon Light Bulb Sizes →📖 1991 Dodge Ram Wagon Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
14.5 quarts (13.72 L) — PRESTONE II, PEAK, or antifreeze containing the ALUGARD 340-2 inhibitor system. Add 1 qt.with auxiliary rear heater.
Frequently asked questions
What type of oil does a 1991 Dodge Ram Wagon take?
It depends on the engine: B150, 3.9 X, Automatic uses 5W-30; B150, 3.9 X, Standard uses 5W-30; B150, 5.2 Y, 32RH uses 5W-30; B150, 5.2 Y, 42RH uses 5W-30; B150, 5.2 Y, A500 uses 5W-30; B150, 5.2 Y, A999 uses 5W-30; B250, Van Passenger Extended, 5.2 Y, 32RH uses 5W-30; B250, Van Passenger Extended, 5.2 Y, 36RH uses 5W-30; B250, Van Passenger Extended, 5.2 Y, 42RH uses 5W-30; B250, Van Passenger Extended, 5.2 Y, 46RH uses 5W-30; B250, Van Passenger Extended, 5.2 Y, A500 uses 5W-30; B250, Van Passenger Extended, 5.2 Y, A518 uses 5W-30; B250, Van Passenger Extended, 5.2 Y, A727 uses 5W-30; B250, Van Passenger Extended, 5.2 Y, A999 uses 5W-30; B250, Van Passenger Extended, 5.9 Z, 46RH uses 5W-30; B250, Van Passenger Extended, 5.9 Z, A518 uses 5W-30; B250, Van Passenger, 3.9 X uses 5W-30; B250, Van Passenger, 5.2 Y, 32RH uses 5W-30; B250, Van Passenger, 5.2 Y, 36RH uses 5W-30; B250, Van Passenger, 5.2 Y, 42RH uses 5W-30; B250, Van Passenger, 5.2 Y, 46RH uses 5W-30; B250, Van Passenger, 5.2 Y, A500 uses 5W-30; B250, Van Passenger, 5.2 Y, A518 uses 5W-30; B250, Van Passenger, 5.2 Y, A727 uses 5W-30; B250, Van Passenger, 5.2 Y, A999 uses 5W-30; B250, Van Passenger, 5.9 Z, 46RH uses 5W-30; B250, Van Passenger, 5.9 Z, A518 uses 5W-30; B350, Van Passenger Extended, 46RH uses 5W-30; B350, Van Passenger Extended, A518 uses 5W-30; B350, Van Passenger, 5.2 Y, 42RH uses 5W-30; B350, Van Passenger, 5.2 Y, 46RH uses 5W-30; B350, Van Passenger, 5.2 Y, A500 uses 5W-30; B350, Van Passenger, 5.2 Y, A518 uses 5W-30; B350, Van Passenger, 5.9 Z, 46RH uses 5W-30; B350, Van Passenger, 5.9 Z, A518 uses 5W-30.
What is the oil capacity of a 1991 Dodge Ram Wagon?
Oil capacity depends on the engine: B150, 3.9 X, Automatic holds 4.0 quarts with filter; B150, 3.9 X, Standard holds 4.0 quarts with filter; B150, 5.2 Y, 32RH holds 4.5 quarts with filter; B150, 5.2 Y, 42RH holds 4.5 quarts with filter; B150, 5.2 Y, A500 holds 4.5 quarts with filter; B150, 5.2 Y, A999 holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, 32RH holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, 36RH holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, 42RH holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, 46RH holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, A500 holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, A518 holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, A727 holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.2 Y, A999 holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.9 Z, 46RH holds 4.5 quarts with filter; B250, Van Passenger Extended, 5.9 Z, A518 holds 4.5 quarts with filter; B250, Van Passenger, 3.9 X holds 4.0 quarts with filter; B250, Van Passenger, 5.2 Y, 32RH holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, 36RH holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, 42RH holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, 46RH holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, A500 holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, A518 holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, A727 holds 4.5 quarts with filter; B250, Van Passenger, 5.2 Y, A999 holds 4.5 quarts with filter; B250, Van Passenger, 5.9 Z, 46RH holds 4.5 quarts with filter; B250, Van Passenger, 5.9 Z, A518 holds 4.5 quarts with filter; B350, Van Passenger Extended, 46RH holds 4.5 quarts with filter; B350, Van Passenger Extended, A518 holds 4.5 quarts with filter; B350, Van Passenger, 5.2 Y, 42RH holds 4.5 quarts with filter; B350, Van Passenger, 5.2 Y, 46RH holds 4.5 quarts with filter; B350, Van Passenger, 5.2 Y, A500 holds 4.5 quarts with filter; B350, Van Passenger, 5.2 Y, A518 holds 4.5 quarts with filter; B350, Van Passenger, 5.9 Z, 46RH holds 4.5 quarts with filter; B350, Van Passenger, 5.9 Z, A518 holds 4.5 quarts with filter.
How often should I change the oil in my 1991 Dodge Ram Wagon?
Most 1991 Dodge Ram Wagon 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 Wagon?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Dodge Ram Wagon. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.