Is it necessary to use 95 octane gasoline for a car designed for 92 octane?

1 Answers
EmiliaMarie
07/30/25 3:09am
It is not necessary to use higher octane fuel, as the difference in octane ratings represents the fuel's resistance to knocking and has no other implications. Using 92 octane fuel is sufficient. Below are some relevant details: 1. Gasoline octane ratings: The octane rating of gasoline indicates its octane number. The higher the octane number, the better the fuel's resistance to knocking. In reality, the octane rating has no relation to the cleanliness of the fuel. 2. Using lower octane fuel: Similarly, if the manufacturer specifies a minimum requirement of 95 octane and you use 92 octane, the lower octane fuel may cause knocking or detonation, leading to reduced performance. If possible, it is recommended to drain the fuel and replace it with the correct octane rating.
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