1994 Mitsubishi Diamante Oil Type & Capacity
The 1994 Mitsubishi Diamante oil type depends on the engine: the Base takes 20W-20 (4.2 quarts with filter); the ES, 3.0 H takes 20W-20 (4.0 quarts with filter); the ES, 3.0 S takes 20W-20 (4.0 quarts with filter); the LS takes 20W-20 (4.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base: 20W-20, 4.2 quarts with filter
- ES, 3.0 H: 20W-20, 4.0 quarts with filter
- ES, 3.0 S: 20W-20, 4.0 quarts with filter
- LS: 20W-20, 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base — Wagon | 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) | 4.20 QTS. | — | — |
| ES, 3.0 H — Sedan | 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) | 4.00 QTS. | — | — |
| ES, 3.0 S — Sedan | 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) | 4.00 QTS. | — | — |
| LS — Sedan | 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) | 4.00 QTS. | — | — |
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More specs & repair guides for your Diamante
1994 Mitsubishi Diamante factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
10.04 quarts (9.5 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water. Includes: .74 qt. in reserve tank.
Frequently asked questions
What type of oil does a 1994 Mitsubishi Diamante take?
It depends on the engine: Base uses 20W-20; ES, 3.0 H uses 20W-20; ES, 3.0 S uses 20W-20; LS uses 20W-20.
How much oil does a 1994 Mitsubishi Diamante take?
Capacity depends on the engine: Base holds 4.2 quarts with filter; ES, 3.0 H holds 4.0 quarts with filter; ES, 3.0 S holds 4.0 quarts with filter; LS holds 4.0 quarts with filter.
Can I use synthetic oil in my 1994 Mitsubishi Diamante?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1994 Mitsubishi Diamante. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.