1991 Mitsubishi Pickup Oil Type & Capacity
The 1991 Mitsubishi Pickup takes 20W-20 motor oil — 4.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
20W-20 — 4.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Mighty Max 1 Ton | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
| Mighty Max, 2D Pickup Extra Cab, Automatic | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
| Mighty Max, 2D Pickup Extra Cab, Standard | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
| Mighty Max, 2D Pickup, 2.4 W, Automatic | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
| Mighty Max, 2D Pickup, 2.4 W, Standard | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
| Mighty Max, 2D Pickup, 3.0 S | API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | API - SAE 5W-20 not recommended for sustained high speed vehicle operation. |
Buy the right oil
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More specs & repair guides for your Pickup
1991 Mitsubishi Pickup factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
6.3 quarts (5.96 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water. Includes: .5 qt. for coolant reserve tank.
Frequently asked questions
What type of oil does a 1991 Mitsubishi Pickup take?
The 1991 Mitsubishi Pickup takes 20W-20 motor oil (API - SAE 20W-20/40/50 (32Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-30 (Below -20Deg.F to 60Deg.F)), per the factory service manual.
How much oil does a 1991 Mitsubishi Pickup take?
The 1991 Mitsubishi Pickup holds 4.5 quarts with a filter change, or 4.0 quarts without changing the filter.
Can I use synthetic oil in my 1991 Mitsubishi Pickup?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Mitsubishi Pickup. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.