Can 92 Octane Fuel Be Mixed with 95 Octane?

1 Answers
DeKarter
07/29/25 6:22pm
92 octane fuel can be mixed with 95 octane, but long-term use is not recommended for the following reasons: 1. Different Octane Ratings: 92 and 95 are fuel grades, but the grade does not indicate fuel quality. The difference lies in their anti-knock properties, specifically the octane rating, which varies to suit different types of engines. 2. Different Compression Ratios: Different engines have different compression ratios. Engines with a compression ratio of 8.5-9.5 typically use 92 octane fuel, while those with a compression ratio above 9.5 generally use 95 octane fuel. Long-term mixing of different fuel grades may affect the lifespan of the car's ignition system, fuel injectors, and spark plugs.
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