What is the difference between the fuel used in scooters and other vehicles

Dear student

If you are talking about two wheelers, then the fuel used in scooters and other vehicles is same.
However, in case of three wheelers, CNG is used in many metropolitian cities. The difference between CNG and other fuels is that CNG, is compressed natural gas, which is a clean fuel ,and produces less pollution compared to petrol and diesel.

Regards