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Which fuel is used in Supra?

The Toyota Supra runs on gasoline (petrol); it is not designed to operate on diesel or electricity. In its current GR Supra lineup, premium unleaded gasoline is recommended to achieve peak performance.


Across markets, the Supra’s engines—the 2.0-liter turbo and the 3.0-liter turbo—rely on high-octane gasoline to deliver the car’s performance and efficiency metrics. Always refer to your specific model year and engine variant in the owner's manual to confirm the exact octane requirements and any regional fuel guidelines.


Fuel type and octane guidelines


Regional guidance on the recommended fuel type and octane levels for GR Supra models varies by market. The following notes summarize the general guidance by region.



  • United States and Canada: Premium unleaded gasoline with an octane rating of 93 AKI (or higher) is typically recommended to sustain peak performance and engine safety.

  • Europe and the United Kingdom: Premium petrol with a minimum of about 95 RON is commonly advised, with higher-octane fuels often used for maximum performance in sportier variants.

  • Other markets: Use premium unleaded gasoline according to local Toyota specifications for your engine variant and year; when in doubt, consult the owner's manual or a local Toyota dealer.


In short, the Supra is fueled by gasoline across all trims, and premium-grade octane is important for preserving performance and engine health. Verify the exact octane requirement for your specific model year and market in the manual.


Why octane matters for the Supra


Higher octane helps prevent engine knocking (pre-ignition) under the Supra’s turbocharged boost, allowing the engine to run closer to its intended timing and power output. Using the recommended octane ensures consistent performance, throttle response, and emissions behavior, while using lower-octane gasoline can reduce performance and efficiency and may trigger knock or protective timing adjustments.


Fuel system maintenance tips


To get the most from your Supra’s fuel system and turbocharged engines, consider the following guidelines.



  • Use the recommended premium unleaded gasoline for your engine variant and market to maintain optimal performance.

  • If you ever use ethanol-blended fuel, ensure it complies with your manual’s allowed fuel specification for your region.

  • Keep fueling with reputable brands and avoid suspected contaminated or low-quality fuels; if you notice rough running or misfires, have the fuel system inspected by a technician.


Adhering to these fueling guidelines helps protect the engine, turbocharger, and emissions systems while maintaining the Supra's intended performance.


Summary


The Toyota Supra runs on gasoline, with a strong emphasis on premium unleaded fuel to support its turbocharged engines. Octane requirements vary slightly by region, so always check the owner’s manual for your market and model year. Using the recommended fuel preserves performance, efficiency, and engine health.

Can I use 87 gas in my Toyota?


In summary, it is best to stick to the recommended 87 octane fuel for your Toyota. This is the peak efficiency level for your vehicle.



What type of gas does a Supra take?


A Toyota Supra takes premium unleaded gasoline, with an octane rating of 91 or higher for the 2.0L model and 93 or higher for the 3.0L model to achieve optimal performance. While the 2.0L can operate safely on 87 octane, it will experience decreased performance, while the 3.0L engine is designed specifically for 93 octane and running lower grades may cause performance issues or potential engine damage over time.
 
2.0L GR Supra

  • Recommended: 91 octane or higher
  • Safe to use: 87 octane is safe, but performance will be reduced 

3.0L GR Supra
  • Recommended: 93 octane or higher
  • Performance impact: Using anything lower than 93 octane will result in decreased performance 

Important considerations
  • Engine health: Using the recommended high-octane fuel helps prevent engine knocking and can extend the life of the engine by ensuring smoother power delivery and preventing damage. 
  • Performance: The horsepower ratings for the Supra are based on using the recommended premium fuel. Using a lower grade can result in a reduction in power and acceleration. 
  • Check your manual: Always check your vehicle's owner's manual or the fuel door for the specific octane recommendation for your model year. 



What if I put 87 instead of 91?


If your car requires 91 octane, putting 87 can lead to decreased performance, lower fuel economy, and potentially engine knocking or pinging. Modern engines can often adjust timing to prevent damage, but persistent use of lower octane fuel can reduce efficiency and power. To fix this, fill the tank with 91 octane fuel the next time you refuel to get back to the recommended octane level. 
Consequences of using 87 instead of 91

  • Engine knock: The fuel can ignite prematurely, causing a rattling or "pinging" sound. 
  • Reduced power: Your car's engine control unit (ECU) will likely adjust the timing to prevent damage, which can result in a noticeable drop in performance. 
  • Lower fuel economy: The engine's reduced efficiency can lead to you getting fewer miles per gallon. 
  • Potential for long-term damage: While a single instance is unlikely to cause lasting harm, consistently using the wrong octane could lead to engine damage over time. 

What to do now
  • Drive normally: The engine's knock sensors should compensate for the lower octane fuel. 
  • Avoid aggressive driving: Stay away from hard acceleration or high-stress situations, such as driving in hot weather or under heavy loads. 
  • Refill with 91 octane next time: The best way to resolve this is to simply fill up with the correct fuel grade at your next stop. 
  • Check your owner's manual: If you're unsure, always refer to your vehicle's owner's manual for specific fuel recommendations. 



Should I use 87 or 89 gas?


Your car will run just fine. All modern cars can run 87,89,91,93. It's suggested that for maximum power that you use 93. If you're not at a track day event and just daily commuting 87 will serve you well. All modern cars are equipped with knock sensors to prevent engine damage from running lower octane fuel.


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.