Which fuel is primarily used for cars?

Gasoline is primarily used as a fuel for cars due to its suitable properties that match the requirements of internal combustion engines. It has a high energy density, which means it can produce a significant amount of energy when burned, making it efficient for powering vehicles. Additionally, gasoline has a relatively low boiling point, allowing it to vaporize easily and mix effectively with air, facilitating better combustion and engine performance.

While diesel is also a common fuel for vehicles, particularly larger ones such as trucks and buses, gasoline is more conventional for standard passenger cars. Kerosene is mainly used as fuel for jet engines and some types of heating, while refinery gases, which include lighter hydrocarbons, are not primarily used for standard automotive applications. Therefore, gasoline is widely recognized and manufactured specifically for car engines, making it the primary fuel for automobiles.