
The Subaru BRZ is a sports car manufactured by Subaru, which has sparked discussions among car enthusiasts about its fuel tank size and the type of fuel it uses. With a reported fuel tank capacity of around 13 gallons (approximately 50 litres), the BRZ's fuel efficiency and range have been a topic of interest for many drivers. Some owners have shared their experiences with the car's fuel consumption, while others have explored the possibility of installing larger fuel tanks. In addition, there is a focus on the recommended fuel type, with some sources suggesting that premium fuel with a higher octane rating is optimal for the BRZ's performance.
| Characteristics | Values |
|---|---|
| Fuel Tank Capacity | 13 gallons (50 litres) |
| Reserve Capacity | 3 gallons (11.3 litres) |
| Range on Reserve | 80-90 km |
| Fuel Type | Premium Unleaded Gasoline |
| Recommended Octane Rating | 93 AKI (98 RON) |
| Minimum Octane Rating | 91 AKI (95 RON) |
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What You'll Learn

The 2024 Subaru BRZ has a 13.2-gallon fuel tank
The BRZ's fuel light comes on prematurely, and the range is inaccurate. When the light comes on, there are around 3 gallons of fuel left in the tank, which is enough to travel 80-90km. However, this range can vary depending on driving style.
It is recommended not to drive below 0 miles once the fuel light comes on, as the fuel pump relies on the liquid in the tank for cooling. Running the tank empty can lead to pump failure.
The BRZ gets around 27 mpg with a mix of freeway and city driving.
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The reserve kicks in with around 3 gallons left
The Subaru BRZ is equipped with a 13.2-gallon (or 50-litre) fuel tank. When the tank is close to empty, a yellow reserve light illuminates, indicating that there are approximately 3 gallons (or 8 litres) of fuel left. This reserve fuel provides a rough guide of 80 to 90 kilometres of range, although the actual distance may vary depending on driving style and car model.
It is important to note that the fuel pump relies on the liquid in the tank for cooling, so running the tank completely empty could lead to pump failure. Therefore, it is recommended to refill the tank before it reaches the absolute minimum level.
The BRZ's fuel efficiency is estimated at 27 miles per gallon with a mix of freeway and city driving. However, some owners have reported discrepancies in the car's MPG calculations. The fuel light also tends to come on prematurely, and the range estimate may not always be accurate.
When refuelling, it is generally recommended to use premium fuel with an octane rating of at least 91 for optimum performance. Lower octane fuel can be used in a pinch, but it may affect performance and cause issues like engine knocks.
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The BRZ requires premium fuel of 91+ octane for optimal performance
The Subaru BRZ is a high-performance sports car with a 2.4L engine and a 13.2-gallon fuel tank. Due to its 12.5:1 compression ratio, the BRZ requires premium fuel of 91+ octane for optimal performance.
Using premium fuel in the BRZ is essential to prevent engine knocking and to ensure the vehicle operates within its optimum performance characteristics. While some sources suggest that the BRZ requires 93 octane fuel, it is generally accepted that 91 octane fuel can be used without detriment to the engine or driving experience.
It is important to note that using lower octane fuel in the BRZ will result in reduced performance. The engine's knock sensor will detect the use of lower octane fuel and immediately reduce ignition timing, leading to decreased engine performance. Additionally, piston ring lands will wear out faster, and fuel economy and power will suffer.
Some owners of the BRZ have reported that they have used 87 or 89 octane fuel in their vehicles without significant issues. However, this practice is not recommended by the manufacturer and can result in engine knocks and other problems.
To summarise, while it is possible to use lower octane fuel in the BRZ, it is advisable to use premium fuel of 91+ octane to ensure optimal performance, engine durability, and driving experience.
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Lower octane fuel can be used but will negatively impact performance
The Subaru BRZ is a sports car with a 13.2-gallon fuel tank capacity, or roughly 50 litres. While the BRZ can technically use lower octane fuel, it is not recommended as it will negatively impact performance.
The BRZ is designed to run on premium fuel with an octane rating of 93 AKI (98 RON) or higher. This is due to its 12.5:1 compression ratio, which requires higher-octane fuel to prevent engine knocking and ensure optimal performance. Using lower octane fuel can cause the engine to knock, reducing ignition timing and engine performance.
The BRZ's knock sensor will detect the use of lower octane fuel and adjust the ignition timing to prevent engine damage. However, this will result in reduced power and fuel economy. Lower octane fuel can also cause severe ignition timing retardation and piston ring land wear.
While some owners have reported using 87 or 89 octane fuel without major issues, it is not recommended as it can still negatively affect performance and engine operation. It is important to follow the manufacturer's recommendations for fuel type to ensure the vehicle performs as intended.
Additionally, using premium fuel has other benefits beyond performance. Premium fuel does not contain ethanol, which can gunk up fuel lines if the car is not driven for extended periods. It also remains stable in the fuel tank for longer, reducing the risk of fuel system issues.
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The fuel pump relies on the liquid in the tank for cooling
The Subaru BRZ is equipped with a 13.2-gallon (or 50-litre) fuel tank. While there are discussions about the accuracy of the fuel gauge and range estimates, the general consensus is that the reserve kicks in with approximately 3 gallons remaining in the tank, providing a range of around 80-90 km.
It is important to note that the fuel pump in the Subaru BRZ relies on the liquid in the tank for cooling. Running the tank too low can lead to pump failure. This is because the fuel in the tank helps to cool the pump, and if the tank is empty, the pump can overheat and fail. Therefore, it is recommended to avoid letting the tank get too close to empty to prevent potential issues with the fuel pump.
The BRZ requires premium fuel with an octane rating of at least 91 for optimum performance. While it is possible to use lower octane fuel, it may result in reduced performance and potential engine knocks. Additionally, premium fuel can remain stable in the tank for longer periods, which is beneficial if the car is not used for extended periods.
Some owners have expressed a desire for a larger fuel tank, but it is important to consider the weight implications of a larger tank, especially when combined with other weight-adding modifications such as carbon fibre components.
Overall, while the Subaru BRZ has a respectable fuel tank capacity, it is important to monitor fuel levels and refill when necessary to ensure the proper cooling of the fuel pump and maintain the performance and longevity of the vehicle.
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Frequently asked questions
The fuel tank capacity of the Subaru BRZ is 13 gallons or 50 litres.
The Subaru BRZ requires premium fuel with a minimum of 91 octane for optimal performance. Lower octane fuel can be used but this may cause engine knocks and other problems.
On a full tank of gas, the Subaru BRZ can go approximately 400-450 km, depending on driving style. When the fuel light comes on, the car can go another 80-90 km before running out of gas.











































