Can turbocharged cars use 92 octane gasoline?

[OFinley]

Whether a car should use 92 octane gasoline is determined by its engine compression ratio. Turbocharged models with a compression ratio between 8.5 and 9.5 should generally use 93 octane gasoline, while those with a compression ratio greater than 9.5 should use 95 octane gasoline. Here are some related details: 1. Generally, car engines with higher compression ratios have greater power and higher fuel efficiency, but they often lack stability, thus requiring gasoline with better anti-knock properties. The advantage of 95 octane gasoline over 92 octane lies in its higher octane rating, which provides better anti-knock performance. 2. Strictly speaking, 92 octane and 95 octane gasoline should not be mixed. However, since their chemical compositions and other aspects are quite similar and both have strong anti-knock properties, mixing them usually doesn't cause significant issues. But to ensure vehicle safety, it's best to use them separately.