2003 Acura RSX Oil Type & Capacity
The 2003 Acura RSX oil type depends on the engine: the Base, Automatic takes 5W-20 (4.4 quarts qt with filter); the Base, Standard takes 5W-20 (4.4 quarts qt with filter); the Type S takes 5W-30 (5.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, Automatic: 5W-20, 4.4 quarts with filter
- Base, Standard: 5W-20, 4.4 quarts with filter
- Type S: 5W-30, 5.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic — Base | API - SAE 5W-20 | 4.40 QTS. | 4.20 QTS. | Excluding the oil remaining in the engine. |
| Base, Standard — Base | API - SAE 5W-20 | 4.40 QTS. | 4.20 QTS. | Excluding the oil remaining in the engine. |
| Type S — Type S | API - SAE 5W-30 | 5.00 QTS. | 4.80 QTS. | — |
More factory specs & repair guides for your RSX
🛞 2003 Acura RSX Tire Size & Pressure →🌧️ 2003 Acura RSX Wiper Blade Sizes →💡 2003 Acura RSX Light Bulb Sizes →📖 2003 Acura RSX Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
5.28 quarts (4.99 L) — HONDA All Season Antifreeze/Coolant Type 2. Includes: the coolant in the reserve tank and that remaining in the engine.
Frequently asked questions
What type of oil does a 2003 Acura RSX take?
It depends on the engine: Base, Automatic uses 5W-20; Base, Standard uses 5W-20; Type S uses 5W-30.
What is the oil capacity of a 2003 Acura RSX?
Oil capacity depends on the engine: Base, Automatic holds 4.4 quarts with filter; Base, Standard holds 4.4 quarts with filter; Type S holds 5.0 quarts with filter.
How often should I change the oil in my 2003 Acura RSX?
Most 2003 Acura RSX 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 2003 Acura RSX?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Acura RSX. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.