1998 Isuzu Trooper Oil Type & Capacity
The 1998 Isuzu Trooper 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 |
|---|---|---|---|---|
| Limited | API - SAE 5W-30 (-20Deg.F to Above 100Deg.F),10W-30 (Above 0Deg.F), 30 (Above 40Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 5.00 QTS. | 4.30 QTS. | — |
| LS | API - SAE 5W-30 (-20Deg.F to Above 100Deg.F),10W-30 (Above 0Deg.F), 30 (Above 40Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 5.00 QTS. | 4.30 QTS. | — |
| S, Automatic | API - SAE 5W-30 (-20Deg.F to Above 100Deg.F),10W-30 (Above 0Deg.F), 30 (Above 40Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 5.00 QTS. | 4.30 QTS. | — |
| S, Standard | API - SAE 5W-30 (-20Deg.F to Above 100Deg.F),10W-30 (Above 0Deg.F), 30 (Above 40Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F) | 5.00 QTS. | 4.30 QTS. | — |
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More specs & repair guides for your Trooper
1998 Isuzu Trooper factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
9.0 quarts (8.51 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water
Frequently asked questions
What type of oil does a 1998 Isuzu Trooper take?
The 1998 Isuzu Trooper takes 5W-30 motor oil (API - SAE 5W-30 (-20Deg.F to Above 100Deg.F),10W-30 (Above 0Deg.F), 30 (Above 40Deg.F), 15W-40, 20W-40/50 (Above 10Deg.F)), per the factory service manual.
How much oil does a 1998 Isuzu Trooper take?
The 1998 Isuzu Trooper holds 5.0 quarts with a filter change, or 4.3 quarts without changing the filter.
Can I use synthetic oil in my 1998 Isuzu Trooper?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1998 Isuzu Trooper. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.