1999 Isuzu Trooper Oil Type & Capacity: 5W-30 (5.7 quarts)
The 1999 Isuzu Trooper takes 5W-30 motor oil — 5.7 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 5.7 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 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) | 5.70 QTS. | — | — |
| Part Time | 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) | 5.70 QTS. | — | — |
More factory specs & repair guides for your Trooper
🛞 1999 Isuzu Trooper Tire Size & Pressure →🌧️ 1999 Isuzu Trooper Wiper Blade Sizes →💡 1999 Isuzu Trooper Light Bulb Sizes →📖 1999 Isuzu Trooper Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
11.0 quarts (10.4 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water
Frequently asked questions
What type of oil does a 1999 Isuzu Trooper take?
The 1999 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.
What is the oil capacity of a 1999 Isuzu Trooper?
The 1999 Isuzu Trooper oil capacity is 5.7 quarts with a filter change.
How often should I change the oil in my 1999 Isuzu Trooper?
Most 1999 Isuzu Trooper 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 — Isuzu recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1999 Isuzu Trooper?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 Isuzu Trooper. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.