What type of gasoline should turbocharged cars use?
2 Answers
Turbocharged cars use different gasoline grades depending on their displacement. Simply follow the fuel grade specified for the engine. Since turbocharged engines require higher power and torque output with greater efficiency, it is recommended to use 95-octane gasoline, as higher-grade fuel better matches turbocharged engines. These engines endure significant loads during operation, and under the same working pressure, higher-grade gasoline performs more stably under high pressure. The higher the engine's compression ratio, the higher the required gasoline grade, as higher-grade fuel offers better anti-knock performance. This not only enhances engine power but also reduces the likelihood of engine knocking.
Over the years of driving turbocharged cars, I've always insisted on using 95 or 98 octane fuel. Turbo engines operate under high pressure and temperature, just like athletes needing high-energy food – they require high-octane fuel with good anti-knock properties. 92 octane fuel has a lower octane rating and may pre-ignite under high temperature and pressure, causing engine knocking and reduced power. At the last car meetup, someone mentioned saving money by using 92 octane, only to have the check engine light come on a month later, costing thousands to repair the turbo. The salesperson specifically reminded me about the fuel grade label on the fuel filler cap when I bought the car – if it says 95, never compromise. Paying attention to fuel quality is also crucial in daily driving; no matter how cheap, low-quality gas from small stations should be avoided.
