transitive. To refuel (a motor vehicle) with petrol.

transitive. To supply with more fuel. Now chiefly spec.: to fill the fuel tank of (a car, an aircraft, etc.) again. Also figurative.

Chiefly to tank up. transitive. To fill the tank of (a vehicle) with fuel; to refuel. Also absol., and intransitive for passive. colloquial.

transitive. To fill up to the top (a tank already partly full) with fuel. U.S. colloquial.

transitive, to fuel with liquid oxygen.