1990 Jeep Grand Wagoneer Oil Type & Capacity
The 1990 Jeep Grand Wagoneer takes 5W-30 motor oil — 5.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Grand Wagoneer | API - SAE 5W-30 (-20Deg.F to 60Deg.F), 10W-30 (0Deg.F to Above 100Deg.F) | 5.00 QTS. | 4.00 QTS. | — |
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More specs & repair guides for your Grand Wagoneer
1990 Jeep Grand Wagoneer factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
13.0 quarts (12.3 L) — 50/50 mixture of All Season Coolant and water
Frequently asked questions
What type of oil does a 1990 Jeep Grand Wagoneer take?
The 1990 Jeep Grand Wagoneer takes 5W-30 motor oil (API - SAE 5W-30 (-20Deg.F to 60Deg.F), 10W-30 (0Deg.F to Above 100Deg.F)), per the factory service manual.
How much oil does a 1990 Jeep Grand Wagoneer take?
The 1990 Jeep Grand Wagoneer holds 5.0 quarts with a filter change, or 4.0 quarts without changing the filter.
Can I use synthetic oil in my 1990 Jeep Grand Wagoneer?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1990 Jeep Grand Wagoneer. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.