Will switching from 95 to 92 octane gasoline have any impact on my car?

[AuroraLynn]

Switching from 95 to 92 octane gasoline will have some impact on your car. More details are as follows: 1. Octane rating is an indicator of anti-knock performance. The higher the octane rating, the better the gasoline's anti-knock performance. The only difference between 95 and 92 octane gasoline is that 95 octane has better anti-knock performance. For cars that specify 95 octane gasoline, using 92 octane may cause engine knock under low-speed, high-load conditions, such as when going uphill or during acceleration. You might hear a "clicking" sound similar to metal knocking, which is the sound of engine knock. However, this only means the tendency for knock increases, not that all cars will experience knock. 2. The engine's compression ratio is closely related to anti-knock performance. The higher the compression ratio, the higher the required gasoline anti-knock performance (to avoid engine knock), which also results in stronger engine power and higher fuel efficiency. However, if the engine has a low compression ratio but uses high anti-knock gasoline, the gasoline's potential won't be fully utilized, leading to economic waste.