The fuel used to power most automobile engines comes from what source of energy?

The fuel used to power most automobile engines comes from crude oil. Crude oil is a naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials. It is formed from the remains of ancient plants and animals that have been buried underground for millions of years. Crude oil is the primary source of energy for most automobile engines, used to produce gasoline, diesel fuel, and other petroleum-based fuels. These fuels are burned in the engine to provide the necessary power and energy to propel the vehicle.