Can I Use 95 Octane Gasoline When 92 Octane is Specified?

1 Answers
OKaleb
07/30/25 4:07am
It is acceptable to use 95 octane gasoline when 92 octane is specified. If a vehicle requires 92 octane gasoline, you can use 92 octane or higher-grade gasoline. If a vehicle requires 95 octane gasoline, you can use 95 octane or higher-grade gasoline. Using higher-octane gasoline can enhance engine performance. Gasoline consists of isooctane and n-heptane, and the octane rating is named after its isooctane content. For example, 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. Isooctane exhibits excellent thermal stability and combustion value, representing gasoline's anti-knock performance. The higher the isooctane content, the better the gasoline's anti-knock performance and combustion value.
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