1999 Acura SLX Oil Type & Capacity: 10W-30 (5.0 quarts)
The 1999 Acura SLX takes 10W-30 motor oil — 5.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
10W-30 — 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| SLX | API - SJ Energy Conserving, SAE 10W-30 | 5.00 QTS. | 4.30 QTS. | — |
More factory specs & repair guides for your SLX
🛞 1999 Acura SLX Tire Size & Pressure →🌧️ 1999 Acura SLX Wiper Blade Sizes →💡 1999 Acura SLX Light Bulb Sizes →📖 1999 Acura SLX Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
7.4 quarts (7 L) — 50/50 mixture of HONDA Antifreeze/Coolant and water
Frequently asked questions
What type of oil does a 1999 Acura SLX take?
The 1999 Acura SLX takes 10W-30 motor oil (API - SJ Energy Conserving, SAE 10W-30), per the factory service manual.
What is the oil capacity of a 1999 Acura SLX?
The 1999 Acura SLX oil capacity is 5.0 quarts with a filter change, or 4.3 quarts without changing the filter.
How often should I change the oil in my 1999 Acura SLX?
Most 1999 Acura SLX 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 — Acura recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 1999 Acura SLX?
Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 Acura SLX. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.