2009 Acura CSX Oil Type & Capacity: 5W-20 (4.4 quarts)
The 2009 Acura CSX takes 5W-20 motor oil — 4.4 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-20 — 4.4 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic | API Premium Grade SAE 5W-20 detergent oil | 4.40 QTS. | 4.20 QTS. | Excluding the oil remaining in the engine. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. |
| Base, Standard | API Premium Grade SAE 5W-20 detergent oil | 4.40 QTS. | 4.20 QTS. | Excluding the oil remaining in the engine. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. |
| Type-S | API Premium Grade SAE 5W-20 detergent oil | 4.40 QTS. | 4.20 QTS. | Excluding the oil remaining in the engine. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight. |
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More factory specs & repair guides for your CSX
🛞 2009 Acura CSX Tire Size & Pressure →🌧️ 2009 Acura CSX Wiper Blade Sizes →💡 2009 Acura CSX Light Bulb Sizes →📖 2009 Acura CSX Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
4.4 quarts (4.16 L) — 50/50 mixture of HONDA Long-life Antifreeze/Coolant Type 2 and water. Includes: the coolant in the reserve tank and that remaining in the engine. Never add straight antifreeze or plain water.
Frequently asked questions
What type of oil does a 2009 Acura CSX take?
The 2009 Acura CSX takes 5W-20 motor oil (API Premium Grade SAE 5W-20 detergent oil), per the factory service manual.
What is the oil capacity of a 2009 Acura CSX?
The 2009 Acura CSX oil capacity is 4.4 quarts with a filter change, or 4.2 quarts without changing the filter.
How often should I change the oil in my 2009 Acura CSX?
Most 2009 Acura CSX 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 2009 Acura CSX?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2009 Acura CSX. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.