
Fuel
Types of Fuel
Fuels vary from liquids to gases and solids. Know the right type for the context.
Wood is a solid fuel used in campfires.
Fuel Usage
Talk about fuel in context of machines, heaters, engines, not living things.
The truck's engine requires diesel fuel.
Measurement Units
Use liters or gallons to measure liquid fuel; context depends on the country.
I need ten gallons of fuel for my boat.