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Can I put 89 gas in my Honda Accord?

No, it is generally not recommended to put 89 octane gasoline in a Honda Accord. Most Honda Accords are designed to run on 87 octane regular unleaded gasoline, and using a lower octane fuel than what is recommended by the manufacturer can potentially cause engine damage over time.


Understanding Octane Ratings and Fuel Requirements


Octane rating is a measure of a fuel's resistance to premature ignition, also known as "knocking" or "pinging." Higher octane fuels, like 89 or 93, are less prone to knocking and are typically recommended for high-performance or turbocharged engines that operate under higher compression. Lower octane fuels, like 87, are suitable for most standard passenger vehicles with regular engines.


The Honda Accord's engine is designed to run optimally on 87 octane regular gasoline. Using a higher octane fuel like 89 won't provide any additional benefits and will simply cost more at the pump. In fact, using a higher octane fuel than what is recommended can potentially lead to increased fuel consumption and may even cause damage to the engine over time.


Potential Consequences of Using 89 Octane in a Honda Accord



  • Engine Knocking: Lower octane fuels are more prone to premature ignition, which can cause engine knocking or pinging noises. This can lead to increased wear and tear on engine components.

  • Reduced Fuel Efficiency: Higher octane fuels have a slightly different chemical composition that may not burn as efficiently in an engine designed for regular gasoline, potentially reducing fuel economy.

  • Engine Damage: Prolonged use of a higher octane fuel than recommended can cause increased carbon buildup, spark plug fouling, and other issues that may eventually lead to more serious engine problems.


It's important to always refer to the manufacturer's recommendations for the appropriate fuel type and octane rating for your specific Honda Accord model. Using the wrong fuel can potentially void your vehicle's warranty and lead to costly repairs down the line.

Which gas is better for a Honda Accord?


regular unleaded gasoline
What kind of fuel should I use in my Honda engine? Honda engines are certified and designed to run on regular unleaded gasoline. Gasoline is allowed, by regulation, to contain a variety of additives.



What is the difference between 87-89 and 93 gas?


Let's first break down the difference. Typically “regular” gas is 87 octane, “midgrade” is 89 octane and over 91 octane is “premium” gasoline. Some states label top-tier gasoline with 93 octane as “ultra” gas. The numbers represent the level of octane.



What happens if you 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.



Can Honda take 89 gas?


Honda engines are certified and designed to run on regular unleaded gasoline.



Can I put 89 gas in my Honda Civic?


Use of unleaded gasoline of 87 octane or higher is recommended. Use of unleaded gasoline of 91 octane or higher is recommended. Honda recommends TOP TIER Detergent Gasoline where available. Do NOT use gasoline containing more than 15% ethanol.



Does a Honda Accord need 87 or 89 gas?


Does the Honda Accord need premium gas? Technically speaking, no Honda vehicles require premium gasoline. That's right: Unless you're especially concerned about your carbon footprint, you're able to use regular gasoline whenever you drive around Carlsbad and San Marcos.



What happens if I put premium gas in a Honda Accord?


Can You Put Premium Gas in a Honda Accord? It is usually safe to use premium gasoline in a Honda Accord, although it is not necessary. Honda has designed the car to run on regular unleaded gasoline, which can be found in most gas stations at a much more affordable price point.



Does 89 gas burn faster?


Fuel with an 87 octane rating burns more quickly while higher-octane fuels burn more slowly. In engines designed for standard unleaded fuel, efficiency and performance is optimized for 87 octane and could actually perform worse with higher-octane fuel since the burn rate is slower.



Is it bad to mix 89 and 91 gas?


Yes, drivers can mix the two types of fuel. The combined gas types will result in an octane level somewhere in the middle — something the vehicle “will survive,” according to The Drive.



Is 89 premium gas good for your car?


89 is listed as a ``required'' minimum, meaning the lowest octane fuel you should use. 91 is listed as the recommended octane for best performance, because the engine has been tuned to provide best power and best fuel efficiency. Less the 91, lower performance. Simple.


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.