fuel efficiency
nounUK /ˈfjuːəl ɪˈfɪʃənsi/
US /ˈfjuːəl ɪˈfɪʃənsi/
Fuel efficiency means how far a car can go on a certain amount of fuel.
The new car has great fuel efficiency, so we spend less money on gas.
RELATED WORDS
OTHER MEANINGS
2. The amount of useful work a machine gets from the fuel it burns.
Engineers improved the fuel efficiency of the truck's motor.
3. A measure of how little fuel is wasted to produce a given result.
Better fuel efficiency means less pollution from the bus.
4. The ratio of distance traveled to fuel used, often shown in miles per gallon.
The sticker on the car lists its fuel efficiency as 40 miles per gallon.