Definition of gas mileage in English:

gas mileage

noun

mass nounNorth American
  • The number of miles that a vehicle can travel using a particular amount of fuel.

    ‘a well-tuned engine can improve gas mileage by an average of 4%’
    • ‘Its cars had low emissions and great gas mileage, and they were very reliable.’
    • ‘Having a thorough inspection by a qualified professional can cut your emissions and save you gas mileage.’
    • ‘Critics say the changes only raise gas mileage about two miles per gallon.’
    • ‘At 75 miles per hour, the average gas mileage goes down by 24 percent.’
    • ‘The average new vehicle sold today actually gets worse gas mileage than it did in 1980.’
    • ‘Functionally, hybrid engines increase gas mileage (or, if you'd rather, decreases gas consumption).’
    • ‘Simply inflating your tires to the proper level can increase gas mileage by 3.3 percent.’
    • ‘Their tests showed that the device made no difference in gas mileage or emissions.’
    • ‘Someone who buys an expensive sports car to show off probably doesn't fret much about gas mileage.’
    • ‘Not surprisingly, auto makers are balking at the extra investment that would be required to boost gas mileage.’