Should a sedan use 92 or 95 octane gasoline?

[LaDelilah]

If a sedan is equipped with a naturally aspirated engine, it is recommended to use 92 octane gasoline. Higher octane fuel has better anti-knock performance, but it burns relatively slower, leading to a higher compression ratio in the car engine, which can reduce engine power and increase temperature. For turbocharged engines, the manufacturer typically recommends using 92 octane or higher. Using 95 octane gasoline not only allows the car to achieve greater torque at low speeds but also helps eliminate engine shaking and reduce noise. Car owners should refuel according to the appropriate fuel grade for their vehicle, which is usually indicated on the inside of the fuel tank cap. Whether it's 92 or 95 octane, the number represents the gasoline's anti-knock performance. A higher octane number indicates better anti-knock performance, but it does not necessarily mean better quality, contrary to the common belief that higher octane fuel is always better.