Does mixing 92 and 95 gasoline have any impact?

1 Answers
Gilbert
07/29/25 8:48pm
Mixing 92 and 95 gasoline does have an impact, which may lead to engine knocking or reduced power, and in severe cases, it can cause fuel system failures in the engine. This is because different grades of gasoline have different octane ratings and anti-knock indices. Long-term mixing can result in engine carbon deposits and fuel line blockages. Generally, mixing various grades and types of gasoline will not cause obvious problems in the short term, but it should not be used this way for an extended period. If a car is recommended to use 95 or higher-grade gasoline, 92 gasoline should not be used. The anti-knock performance of 92 gasoline is weaker than that of 95 gasoline. Adding too much 92 gasoline will reduce the overall anti-knock performance of the fuel in the tank, making knocking more likely to occur. In mild cases, this can lead to delayed ignition and reduced power, while in severe cases, the engine may fail to operate properly.
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