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What kind of gas does the Acura take?

The answer is generally straightforward: most Acura models run on regular unleaded gasoline (87 octane), while turbocharged or high-performance variants typically require premium fuel (91–93 octane). Always verify the exact specification for your specific model and year in the owner's manual or on the fuel-filler door sticker.


Understanding Acura fuel requirements by model


To understand how fuel choices vary across Acura’s lineup, it helps to separate standard, turbocharged/performance, and special high-performance models from the NSX, which has its own specific requirements. The following guidelines apply broadly, but exact octane ratings can differ by year and engine.


Standard, non-turbo engines


Most Acura models with naturally aspirated engines are designed to run on regular unleaded gasoline (87 octane). Using higher-octane fuel generally does not increase performance on these engines, though some models may tolerate up to 89 octane. Always follow the minimum specification listed in the manual or on the fuel door.


Turbocharged and performance-oriented engines


Engines that use turbocharging or are tuned for higher performance typically require premium gasoline (91–93 octane) to maintain peak power and prevent knock. If you fill with regular fuel, you may experience reduced performance or unnecessary timing adjustments; consult the owner’s manual for the exact requirement for your engine.


High-performance and hybrid models (NSX and related variants)


The Acura NSX and other high-performance or hybrid configurations usually require premium fuel. Exact octane requirements can vary by model year and drivetrain, so check the owner's manual and the fuel-filler door placard for the precise specification.


To summarize, most everyday Acura models use 87 octane regular gas, turbocharged and high-performance variants typically need premium, and the NSX has its own premium requirement. Always confirm with the official documentation for your specific vehicle.


Before you fill up, it’s helpful to know where to verify the exact octane requirement for your Acura.


The following list highlights reliable sources to confirm fuel requirements for your car:



  • Fuel-filler door placard on your vehicle, which states the minimum octane rating required.

  • Owner’s manual, typically in the Fuel and Emissions or Specifications section.

  • Contacting an Acura dealer or service department for model-year-specific guidance.


In practice, using the wrong octane can lead to diminished performance or engine knocking, while using a higher-octane fuel than required generally provides no meaningful benefit for most non-turbo engines. If in doubt, err on the side of the recommended specification listed by Honda/Acura for your exact model and year, and consider sticking with the recommended octane for optimum performance and efficiency.


Summary


Most Acura vehicles accept regular unleaded gasoline (87 octane). Turbocharged and high-performance models typically require premium fuel (91–93 octane), and the NSX has a premium-only requirement. Always check the owner’s manual or the fuel-filler door placard for your specific model and year to ensure you use the correct octane. If you have any doubt, ask your local Acura dealer for exact guidance.

Can you put regular gas in an Acura?


Most Acura models will run on regular gas, but the manufacturer recommends premium fuel for optimal performance and efficiency. While your car won't be damaged by using regular gas, you may experience reduced performance. The only Acura that requires premium fuel is the NSX. Always check your owner's manual or the label inside the fuel filler door for the specific recommendation for your vehicle. 
Important considerations

  • Performance: Using regular gas can lead to reduced engine performance and acceleration in recommended premium models because the engine may adjust its timing to compensate for the lower octane. 
  • Engine Knock: Premium fuel is less likely to pre-ignite, which is a condition known as engine knock. Acura's modern engines have knock sensors to prevent this, but using the recommended fuel helps avoid the need for the engine to compensate for knock. 
  • Fuel Economy: There may be a slight decrease in fuel economy when using regular gas instead of premium. 
  • Required vs. Recommended: For most models like the MDX, RDX, and TLX, premium is recommended, but not required. The NSX is the exception and requires premium fuel. 
  • What to do: To find out exactly what your car needs, check the inside of your fuel filler door or your owner's manual. 



Do I use 87 or 89 gas?


Regular (87 octane) – The standard fuel for most vehicles. Mid-grade (89 octane) – Slightly more resistant to knocking. Premium (91–93 octane) – Designed for high-performance or turbocharged engines.



Can I put 89 in my Acura?


While your Acura vehicle will run fine on regular gasoline, using the recommended premium unleaded 91-octane fuel is sure to boost performance, increase longevity, and keep your Acura running as it should, providing you with the peace of mind you've been seeking.



What happens if I put 87 in my Acura?


Possible Engine Knocking: Lower-octane fuel can cause engine knocking (a knocking sound), which can be damaging over time. Lower Fuel Efficiency: Regular gas may not burn as efficiently as premium fuel, which can cause lower miles per gallon (MPG).


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.