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What kind of gas does a 2009 Acura TSX take?

The 2009 Acura TSX requires premium unleaded gasoline, typically 91 octane or higher. This is the recommended fuel type for this vehicle according to the manufacturer's specifications.


Detailed Explanation


The 2009 Acura TSX is a luxury sedan that was part of Acura's mid-size lineup. It was powered by a 2.4-liter inline 4-cylinder engine that produced 201 horsepower. To ensure optimal performance and fuel efficiency, Acura recommended that owners use premium unleaded gasoline with a minimum octane rating of 91.


Using the proper fuel type is important for several reasons:



  • Engine Performance: Premium gasoline has a higher octane rating, which helps prevent engine knocking and allows the engine to operate at higher compression ratios, resulting in more power and better acceleration.

  • Fuel Efficiency: Premium fuel can improve fuel economy compared to regular gasoline, as the engine is able to operate more efficiently with the higher-octane fuel.

  • Engine Protection: The higher-quality components in premium gasoline can help clean and protect the engine, reducing the risk of deposits and other issues that can occur with lower-quality fuels.


It's important to note that while the 2009 Acura TSX is designed to run on premium fuel, using regular gasoline with a lower octane rating will not cause immediate damage to the engine. However, it may result in a noticeable decrease in performance and fuel efficiency, and could potentially lead to long-term issues if used consistently.

Do acuras really need premium gas?


Do All Acuras Require Premium Gas? Like we stated, premium gas is only recommended on the MDX, RDX, TLX, RLX, and ILX Acura models. You'll be safe on our Cherry Hill roads using regular gas in these automobiles. However, the engines in these models are designed for optimal performance when high-octane fuel is used.



Is premium gas 91 or 93 octane?


Premium gas is also often called high-octane gas thanks to its octane rating of 91 to 94. Regular gas typically has an 87 rating, while the 88-90 range is considered midgrade. Premium gas drives performance in specific engines, but the idea that it's more fuel efficient is a myth.



What happens if I accidentally put regular gas in my Acura?


If you put lower-octane fuel into your high-octane vehicle, whether by mistake or to save money on gas, you'll probably notice the effects right away: things like poor fuel economy, reduced acceleration, and spark knock, which sounds like a high-pitched pinging or rattling noise.



What gas does the Acura TSX 2009 take?


All the Acura models we've mentioned previously are designed specifically for premium fuel, and have knock sensors to lessen the possibility of pre-ignition. Although your Acura can operate effectively with regular gas, you won't be able to take full advantage of your vehicle's performance capabilities.



Which Acura takes regular gas?


Do All Acuras Require Premium Gas? Like we stated, premium gas is only recommended on the MDX, RDX, TLX, RLX, and ILX Acura models. You'll be safe on our Cherry Hill roads using regular gas in these automobiles.



Do Acura TSX require premium gas?


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.



Should I use 87 or 91 gas?


The greater the octane number, the greater the fuel's ignition temperature. There is no benefit in using a higher octane fuel than your vehicle's engine needs, doing so is just wasting money. If your engine doesn't knock at regular octane (87), there is nothing to be gained from using a higher octane fuel.



Can you put 87 gas in an Acura?


No — but it's recommended that you use a higher-octane fuel in your Acura for a number of reasons. According to Acura, premium gas is only required for the Acura NSX, but it is recommended for the MDX, RDX, TLX, RLX, and ILX.



Is it bad to put 89 gas instead of 87?


If you opt for a higher octane than your manual recommends—say, 89 instead of 87—your car will be perfectly fine. It will not, however, improve your car's mileage or give it any sort of extra performance boost. The only thing it will do is cost you extra money, so don't do this.



Does an Acura really need premium gas?


It's standard thinking that luxury vehicles, like Acura models, require premium gas to run properly. According to Acura, premium gas is required for the Acura NSX, and it's recommended for the MDX, RDX, TLX, RLX, and ILX.


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.