Can 92 and 95 gasoline be mixed when refueling a car?

[GabrielleRose]

92 and 95 gasoline cannot be mixed. Here is the relevant information: 1. The higher the octane number, the stronger the anti-knock performance, which is not related to the quality of the gasoline. 2. When gasoline and air are mixed and compressed in the cylinder, if the pressure is too high, knocking may occur, causing the engine to malfunction. In gasoline, the substance that resists knocking is isooctane. The higher the octane number, the higher the isooctane content and the stronger the anti-knock performance. Therefore, whether it is 92 or 95 gasoline, the only difference is the isooctane content; the quality of the gasoline and the heat value per unit volume of fuel are the same.