1991 Ford Aerostar Oil Type & Capacity
The 1991 Ford Aerostar takes 5W-30 motor oil — 5.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Van Cargo Extended, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo Extended, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo Extended, 4.0 X, AWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo Extended, 4.0 X, RWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Cargo, 4.0 X | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger Extended, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger Extended, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger Extended, 4.0 X, AWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger Extended, 4.0 X, RWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Passenger, 4.0 X | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window Extended, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window Extended, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window Extended, 4.0 X, AWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window Extended, 4.0 X, RWD | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window, 3.0 U, Automatic | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window, 3.0 U, Standard | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
| Van Window, 4.0 X | SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
Buy the right oil
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More specs & repair guides for your Aerostar
1991 Ford Aerostar factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
11.8 quarts (11.16 L) — 50/50 mixture of FORD Premium Cooling System Fluid and water
Frequently asked questions
What type of oil does a 1991 Ford Aerostar take?
The 1991 Ford Aerostar takes 5W-30 motor oil (SAE 5W-30 (Below 0Deg.F), 10W-30 (0Deg.F to 100Deg.F)), per the factory service manual.
How much oil does a 1991 Ford Aerostar take?
The 1991 Ford Aerostar holds 5.0 quarts with a filter change, or 4.0 quarts without changing the filter.
Can I use synthetic oil in my 1991 Ford Aerostar?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Ford Aerostar. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.
Other Ford Aerostar years
1997 Aerostar1996 Aerostar1995 Aerostar1994 Aerostar1993 Aerostar1992 Aerostar1990 Aerostar1989 Aerostar1988 Aerostar1987 Aerostar1986 Aerostar
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