What's the Difference Between 92 and 95 Gasoline?

[LeGage]

The differences between 92 and 95 gasoline are as follows: 1. Different Anti-Knock Properties: The gasoline octane rating represents its anti-knock performance. A higher number indicates better anti-knock capability. 2. Different Octane Content: 92-octane gasoline consists of 92% isooctane and 8% n-heptane, while 95-octane gasoline is composed of 95% isooctane and 5% n-heptane. The slightly higher cost of 95-octane gasoline is due to its greater proportion of isooctane. 3. Different Prices: A tank of 95-octane gasoline is slightly more expensive than a tank of 92-octane gasoline. Here is some additional information: Do not mix gasoline of different octane ratings: Normally, if an engine designed for 95-octane gasoline is filled with 92-octane gasoline, the anti-knock performance is essentially weakened, though it may "save money." During operation, the engine may experience knocking, and carbon buildup issues will become increasingly severe. In the worst-case scenario, the engine could be completely damaged. Therefore, it is not recommended to use a lower octane rating than specified.