1992 Mitsubishi Diamante Oil Type & Capacity: 20W-20 (4.0 quarts)
The 1992 Mitsubishi Diamante takes 20W-20 motor oil — 4.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
20W-20 — 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base | 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 | 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 factory specs & repair guides for your Diamante
🛞 1992 Mitsubishi Diamante Tire Size & Pressure →🌧️ 1992 Mitsubishi Diamante Wiper Blade Sizes →💡 1992 Mitsubishi Diamante Light Bulb Sizes →📖 1992 Mitsubishi Diamante Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
8.0 quarts (7.57 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 1992 Mitsubishi Diamante take?
The 1992 Mitsubishi Diamante 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.
What is the oil capacity of a 1992 Mitsubishi Diamante?
The 1992 Mitsubishi Diamante oil capacity is 4.0 quarts with a filter change.
How often should I change the oil in my 1992 Mitsubishi Diamante?
Most 1992 Mitsubishi Diamante 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 — Mitsubishi recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1992 Mitsubishi Diamante?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1992 Mitsubishi Diamante. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.