1989 Mitsubishi Galant Oil Type & Capacity: 20W-20 (3.5 quarts)
The 1989 Mitsubishi Galant takes 20W-20 motor oil — 3.5 quarts with a filter change, per the factory service manual.
Factory-spec answer
20W-20 — 3.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic | 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) | 3.50 QTS. | — | — |
| Base, Standard | 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) | 3.50 QTS. | — | — |
| GS | 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) | 3.50 QTS. | — | — |
| LS | 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) | 3.50 QTS. | — | — |
More factory specs & repair guides for your Galant
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Coolant capacity
7.6 quarts (7.19 L) — 50/50 mixture of High quality ethylene-glycol antifreeze and water
Frequently asked questions
What type of oil does a 1989 Mitsubishi Galant take?
The 1989 Mitsubishi Galant takes 20W-20 motor oil (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.
What is the oil capacity of a 1989 Mitsubishi Galant?
The 1989 Mitsubishi Galant oil capacity is 3.5 quarts with a filter change.
How often should I change the oil in my 1989 Mitsubishi Galant?
Most 1989 Mitsubishi Galant 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 1989 Mitsubishi Galant?
Yes. 20W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1989 Mitsubishi Galant. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.