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Is it okay to suddenly switch from 95 to 92 octane gasoline for motorcycles?

2 Answers

JosephRose

07/29/25 3:08am

There won't be much impact, and the relevant explanation is as follows: Introduction: The octane rating of gasoline marked as allowable for refueling in cars is the minimum rating for safe combustion. For example, if it is recommended to refuel with 92 octane gasoline or above, it means that the minimum allowable octane rating is 92. However, the minimum octane rating is by no means the gasoline with the best fuel efficiency ratio. In order to improve the fuel economy and adaptability of the car, and thereby enhance competitiveness. Additional note: Generally, the priority for refueling gasoline depends on the cylinder compression ratio. For engines with a compression ratio greater than or equal to 10:1 (except for Mazda's Skyactiv engines), it is recommended to use gasoline with an octane rating of 95 or above. Generally, when an engine is being developed, there is a designed gasoline octane rating, and all designs are based on this rating. Engines with a 10:1 compression ratio are usually developed using 95 octane gasoline.

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ChristopherMarie

08/12/25 7:00am

I've been riding motorcycles for years, and suddenly switching from 95-octane to 92-octane fuel? I've tried it a few times, and I really don't recommend it. The bike has a compression ratio requirement—95-octane fuel has a higher octane rating, which prevents knocking; 92-octane fuel has a lower octane rating, and using it can cause the engine to produce knocking sounds, potentially damaging the engine over time. From my experience, engines are designed differently, and using lower-octane fuel in a high-performance motorcycle is like feeding it the wrong thing—power drops, and fuel consumption might even increase. Especially during summer rides, after suddenly switching fuels, the bike felt sluggish and almost stalled on the road, which was too dangerous. My advice is to stick with 95-octane fuel. If you really must use 92-octane, mix it gradually as a transition—don't make a sharp turn. For maintenance, regular oil changes with quality oil are key to avoiding safety risks from sudden decisions.

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