What to Do If 95 Gasoline is Accidentally Filled with 92?

[Robin]

If you accidentally fill up with the wrong gasoline grade or mix different grades for a short period, generally no special maintenance is required for the vehicle. However, if a car that usually uses 95 gasoline is filled with 92 gasoline, it is recommended to use up the 92 gasoline before refilling with 95. Here is some additional information: 1. Composition: 92 and 95 gasoline differ in their composition. 92 gasoline contains 92% isooctane and 8% n-heptane, while 95 gasoline contains 95% isooctane and 5% n-heptane. The higher the proportion of isooctane, the better the anti-knock performance. 2. Avoid Long-Term Mixing: Gasoline is a mixture. Although mixing or using the wrong grade once or twice may not cause significant issues, it is absolutely not advisable to mix them for an extended period. To ensure vehicle safety and performance, it is best to clearly separate the grades when refueling. Otherwise, it can directly affect the engine, shorten the lifespan of the spark plugs, and lead to increased exhaust emissions.