Fueling refers to the process of supplying energy to a vehicle or machine, typically through the addition of a specific type of fuel. This can include liquids like gasoline or diesel, as well as gases such as natural gas or propane. The fuel is stored in a tank and is used to power the engine, enabling it to operate efficiently. In addition to vehicles, fueling can also apply to various types of equipment, such as generators or heating systems. Proper fueling is essential for optimal performance and can impact the overall efficiency and longevity of the engine or machine being used.