1990 Mitsubishi Sigma Oil Type & Capacity
The 1990 Mitsubishi Sigma 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 |
|---|---|---|---|---|
| Sigma | API - SAE 20W-20/30/40 (0Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-20/30/40 (Below -20Deg.F to 60Deg.F) | 4.50 QTS. | 4.00 QTS. | — |
Buy the right oil
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More specs & repair guides for your Sigma
1990 Mitsubishi Sigma factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
9.7 quarts (9.17 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water
Frequently asked questions
What type of oil does a 1990 Mitsubishi Sigma take?
The 1990 Mitsubishi Sigma takes 20W-20 motor oil (API - SAE 20W-20/30/40 (0Deg.F to Above 120Deg.F), 10W-30/40/50 (-10Deg.F to Above 120Deg.F), 5W-20/30/40 (Below -20Deg.F to 60Deg.F)), per the factory service manual.
How much oil does a 1990 Mitsubishi Sigma take?
The 1990 Mitsubishi Sigma holds 4.5 quarts with a filter change, or 4.0 quarts without changing the filter.
Can I use synthetic oil in my 1990 Mitsubishi Sigma?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Mitsubishi Sigma. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.