What Type of Gasoline Should a Turbocharged Engine Use?
2 Answers
Need to see the compression ratio of the turbocharged engine to determine the gasoline type. Here is some relevant information about turbocharged engines: 1. Gasoline Type Selection: It depends on the engine's compression ratio. If the compression ratio is not higher than 10, you can use 93-octane gasoline. If it is higher than 10, it is better to use 97-octane gasoline. 2. The Role of Turbocharged Engines: The main function of turbocharging is to increase the engine's air intake, thereby improving the engine's power and torque, making the car more powerful. After installing a turbocharger, the maximum power of an engine can increase by 40% or more compared to when it is not equipped with a turbocharger. This means that the same engine can produce greater power after being turbocharged.
I've been driving a turbocharged car for several years and always stick to 95-octane gasoline, which works great. The car manual recommends 91-octane or higher fuel because turbocharging increases engine temperature and pressure, and lower-octane fuel can cause knocking, potentially damaging the engine—repairs can be costly. I once tried saving money with 92-octane, but the car shook violently, fuel consumption increased, and it ended up costing more while being more troublesome. So now I consistently use 95-octane, especially noticeable for smoother performance during summer highway drives. Newer cars might adapt better, but for older turbocharged vehicles or frequent heavy-load long-distance trips, higher-octane fuel offers peace of mind. Always check the fuel cap label instead of guessing—gasoline choice directly impacts car longevity and safety. If you accidentally use the wrong fuel and encounter issues, switching back to the recommended grade can often fix the problem.
