The Acura RSX 2.0 (K20A2) typically takes about 4.5 quarts of engine oil when performing an oil change with a new filter. The usual viscosity recommended is 5W-20, though 5W-30 is acceptable in some climates or as specified by the owner's manual.
Capacity specifics for the RSX 2.0
Use this quick reference for the amount of oil needed when you replace the oil and the filter:
- Oil capacity with filter: 4.5 quarts (about 4.3 liters)
Note: This figure assumes a standard oil change with a new filter. If you skip replacing the filter, the difference is typically minimal, but always verify by checking the dipstick after filling and top up as needed.
Oil viscosity guidance
Viscosity and specification guidance for the RSX 2.0:
- Recommended: 5W-20 for most climates and model years
- Alternative: 5W-30 may be used in hotter climates or if your owner’s manual specifies it
Always follow the exact specification for your specific model year and region as printed in the owner's manual or by Acura.
How to check oil level
After adding oil, run the engine briefly, then park on level ground and let it settle for a few minutes. Check the dipstick, wipe it clean, reinsert fully, then read the level. Add small amounts if the level is below the full mark, rechecking until it’s set correctly.
Summary
The RSX 2.0 typically requires about 4.5 quarts (roughly 4.3 liters) of engine oil per oil change with a new filter. Use 5W-20 in most cases, with 5W-30 as an alternative in hot climates or when specified by your manual. Always verify with your exact model year and check the dipstick to ensure proper fill.