Petrol and diesel are fuels that are used to power various types of vehicles, including cars, buses, motorcycles, and scooters. These fuels come from crude oil, which is refined to make petrol or diesel. The internal combustion engines of vehicles burn petrol or diesel to convert the chemical energy of the fuel into kinetic energy, which powers the movement of the vehicle. However, cycles do not need any fuel to operate.

The use of petrol and diesel as fuels has become an integral part of modern life, powering transportation and making many things possible. However, these fuels are non-renewable resources, and their production is limited while consumption is increasing day by day. Therefore, it is important to use these resources judiciously and explore alternative sources of energy, such as electric cars and biodiesel.