Top Definition
The excessive or above normal miles per gallon rate achieved by using hypermiling driving habits.
By coasting downhill my hypermileage was 10 miles per gallon better than normal
by hyper miler June 09, 2008
6 Words related to hypermileage
The excessive or above normal miles per gallon rate achieved by using hypermiling driving habits.
By coasting downhill my hypermileage was 10 miles per gallon better than normal
by hyper miler June 09, 2008

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