What kind of fuel should motorcycles use?

1 Answers
OliveLynn
07/29/25 11:09pm
The most general answer is that motorcycles use two types of fuel: 92 and 95 octane. Compression ratio: The most direct factor determining the type of fuel a motorcycle needs is the engine's compression ratio. The compression ratio is the primary criterion. Typically, small motorcycles, like scooters, have a compression ratio below 9.5:1, so 92 octane fuel is sufficient. However, some imported large-displacement motorcycles often have a compression ratio around 11:1, making 92 octane fuel more suitable. The difference between 95 and 92 octane: The difference in gasoline octane ratings essentially comes down to the anti-knock value, which prevents the fuel from igniting before the piston completes compression in high-compression engines. If this happens, the piston's work is wasted, and it can even lead to power counteraction, causing significant damage to the engine.
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