What oil does a 2004 Acura Rl take?
The 2004 Acura RL typically uses 5W-30 motor oil, with a fill capacity of about 4.5 quarts when changing the oil and filter. Use oil that meets Honda/Acura specifications, and choose between conventional, synthetic-blend, or full synthetic based on your climate and driving conditions.
Official specification and why it matters
For the 2004 RL’s 3.5-liter V6, the standard viscosity is 5W-30. This grade provides balanced cold-start protection and high-temperature performance suitable for daily driving and varied weather. Using a different viscosity can affect lubrication, fuel economy, and engine wear, so it’s best to stick with the recommended 5W-30 unless your owner’s manual or dealer specifies an alternative for your climate.
Below are the common options and considerations you’ll encounter when choosing oil for this model:
- 5W-30 synthetic or synthetic-blend motor oil that meets Honda/Acura specifications and API service requirements (the default choice for most environments).
- 5W-30 full synthetic for enhanced protection and stability in extreme heat or if you drive aggressively or have higher mileage.
- In rare cases or extreme climates, consult the owner’s manual for any climate-specific guidance, but 5W-30 remains the standard recommendation.
Bottom line: for most 2004 RL owners, 5W-30 is the recommended viscosity, and either conventional or synthetic formulations are acceptable as long as they meet the specified standards. Always verify the exact recommendation in your vehicle’s manual or with a trusted mechanic.
Oil capacity and change guidance
When performing an oil change, use roughly 4.5 quarts of 5W-30 oil, including the new oil filter. The exact amount can vary slightly depending on whether you replace the oil filter and the year/trim of the vehicle, so always check the dipstick after the initial fill and top up as needed.
- Warm up the engine briefly, then park on level ground and turn off the engine. Gather your new filter, the correct viscosity oil, a drain pan, and basic tools.
- Place the drain pan beneath the oil pan, remove the drain plug, and let the used oil drain completely.
- Remove the old oil filter and install a new one, lightly coating the gasket with fresh oil before installation.
- Reinstall the drain plug and pour in about 4.5 quarts of 5W-30 oil. Replace the oil fill cap.
- Start the engine, run for a minute, turn it off, wait a few minutes, and recheck the oil level with the dipstick. Top up if necessary and ensure there are no leaks.
Professional tip: after the first drive, recheck the level again to ensure you’re within the recommended range and that the oil pressure gauge (if equipped) reads normally.
Summary
The 2004 Acura RL generally takes 5W-30 motor oil with an approximate capacity of 4.5 quarts (including the filter). You can use conventional, synthetic-blend, or full synthetic oils that meet Honda/Acura specifications and API service standards. For most climates and driving patterns, 5W-30 is the standard choice; always consult the owner's manual or a qualified technician for climate-specific guidance and to confirm exact capacity for your vehicle.
