1999 Mitsubishi Galant Oil Type & Capacity: 5W-30 (4.52 quarts)
The 1999 Mitsubishi Galant takes 5W-30 motor oil — 4.52 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 4.52 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| DE, Automatic | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| DE, Standard | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| ES, 2.4 G, Automatic | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| ES, 2.4 G, Standard | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| ES, 3.0 L | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| GTZ | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
| LS | API - SAE 5W-30 | 4.52 QTS. | 4.20 QTS. | ECOLCS or API - SJ EC, SJ/CD EC. |
More factory specs & repair guides for your Galant
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Coolant capacity
7.4 quarts (7 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water. Includes: .69 qt. in reserve tank.
Frequently asked questions
What type of oil does a 1999 Mitsubishi Galant take?
The 1999 Mitsubishi Galant takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
What is the oil capacity of a 1999 Mitsubishi Galant?
The 1999 Mitsubishi Galant oil capacity is 4.52 quarts with a filter change, or 4.2 quarts without changing the filter.
How often should I change the oil in my 1999 Mitsubishi Galant?
Most 1999 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 1999 Mitsubishi Galant?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 Mitsubishi Galant. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.