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What kind of gas does a 2004 Acura RL take?

The 2004 Acura RL requires premium unleaded gasoline with an octane rating of 91 or higher, and it can use gasoline containing up to 10% ethanol (E10).


The RL from this era relies on a 3.5-liter V6 and is designed to run smoothly on higher-octane fuel to maintain performance and engine longevity. Below are the official guidelines and practical tips to keep fueling aligned with Acura’s recommendations.


Fuel requirements


Key guidelines for fueling the RL are summarized here.



  • Octane rating: Premium unleaded gasoline with an octane rating of 91 AKI (or higher) is recommended.

  • Fuel type: Unleaded gasoline only; avoid leaded fuels and fuels with additives not approved by Acura.

  • Performance considerations: Using the recommended premium fuel helps maintain optimal ignition timing and engine performance.

  • Availability: Premium 91 octane is widely available in most markets; if only lower-octane fuel is available temporarily, consult the manual for guidance on long-term use.


Following these guidelines helps ensure the RL delivers its intended performance and efficiency over time.


Ethanol and fuel compatibility


Compatibility with ethanol blends is common for this generation of Acura vehicles.



  • Ethanol content: The RL is compatible with gasoline containing up to 10% ethanol (E10).

  • Higher ethanol blends: Avoid fuel with more than 10% ethanol unless specifically approved by Acura for your market.

  • Fuel quality: Use clean, fresh gasoline from reputable stations; avoid contaminated fuel and additives not approved by Acura.


When in doubt, verify current guidance in the owner's manual or with an Acura dealer, as specifications can vary by market or model year.


Summary


In short, the 2004 Acura RL runs on premium unleaded gasoline with a minimum octane of 91 and can accommodate up to 10% ethanol (E10). Sticking to these guidelines helps preserve engine performance and longevity.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.