[noun] [U]Mileage is the distance that a vehicle has travelled or the distance that it can travel using a particular amount of fuel.'What's the mileage on your car?' 'Oh, about 40 000'.Smaller cars have better mileage and so cost less to run.Mileage (also mileage allowance) is also the amount of money that you are paid or that you must pay for each mile you travel.If I use my own car for company business, I get a mileage allowance of 40p per mile.It cost £30 a day to rent the car, but you got unlimited mileage (= no charge for the miles travelled).(figurative informal) There's no mileage in (= advantage to be had from) complaining to the Director - she'll just ignore you.
MILEAGE
Meaning of MILEAGE in English
Cambridge English vocab. Кембриджский английский словарь. 2012