Do motorcycles use gasoline or diesel?

[DiEllie]

Motorcycles use gasoline; they can only be fueled with gasoline and not diesel. Fuel selection based on compression ratio: Choose fuel according to the compression ratio: for compression ratios of 9 or below, use 90 octane; for compression ratios above 9, use 93 or 97 octane; for ratios above 10, use 120 octane, though this grade is rarely available on the market. Vehicles with low compression ratios should avoid high-octane fuel as it can lead to higher fuel consumption, knocking, reduced power, and delayed ignition timing. Standard fuel grade for motorcycles: Regular motorcycles can use 90 octane gasoline. While 93 and 97 octane fuels are more expensive than 90 octane, 90 octane is sufficient for normal motorcycle operation, making it unnecessary to spend extra money.