Should a 125cc scooter use 92 or 95 octane gasoline?

[StAdriana]

For a 125cc scooter, it is more appropriate to use 92 octane gasoline. This can both meet and ensure the performance of the engine without causing waste. Scooters have relatively small displacements, and manufacturers typically recommend using 92 octane gasoline. Although it is occasionally possible to use 95 octane gasoline, it is best not to do so as it may negatively affect the scooter's engine. Fuel requirements: Generally, motorcycles with an engine compression ratio below 9.5:1 are suitable for using 92 octane gasoline, while those with a compression ratio above 9.5:1 are better suited for 95 octane gasoline. Notes: The octane rating of gasoline does not indicate the quality or cleanliness of the fuel but rather the level of octane. It should match the engine's compression ratio. Engines with higher compression ratios are more prone to knocking and thus require gasoline with better anti-knock properties (higher octane). However, if the engine's compression ratio is not that high, using higher-octane gasoline serves no purpose and may even lead to incomplete combustion, affecting the engine's normal operation.