1998 Infiniti QX4 Oil Type & Capacity: 5W-30 (3.8 quarts)
The 1998 Infiniti QX4 takes 5W-30 motor oil — 3.8 quarts with a filter change, per the factory service manual.
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| QX4 — 3.3L Eng | API - SAE 5W-30 (Preferred) (Below 0Deg.F to above 100Deg.F), 10W-30 (Above 0Deg.F) | 3.80 QTS. | 3.60 QTS. | — |
More factory specs & repair guides for your QX4
🛞 1998 Infiniti QX4 Tire Size & Pressure →🌧️ 1998 Infiniti QX4 Wiper Blade Sizes →💡 1998 Infiniti QX4 Light Bulb Sizes →📖 1998 Infiniti QX4 Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
11.25 quarts (10.64 L) — Ethylene Glycol Antifreeze Coolant
Frequently asked questions
What type of oil does a 1998 Infiniti QX4 take?
The 1998 Infiniti QX4 takes 5W-30 motor oil (API - SAE 5W-30 (Preferred) (Below 0Deg.F to above 100Deg.F), 10W-30 (Above 0Deg.F)), per the factory service manual.
What is the oil capacity of a 1998 Infiniti QX4?
The 1998 Infiniti QX4 oil capacity is 3.8 quarts with a filter change, or 3.6 quarts without changing the filter.
How often should I change the oil in my 1998 Infiniti QX4?
Most 1998 Infiniti QX4 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 — Infiniti recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1998 Infiniti QX4?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1998 Infiniti QX4. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.