Hypermiling

About Hypermiling

Hypermiling is a set of techniques used to maximize fuel efficiency and exceed the EPA estimated fuel efficiency of vehicles by modifying one's driving habits. Drivers can optimize their automobile fuel economy in a variety of ways, reducing the loss of fuel through engine inefficiency, aerodynamic drag, rolling friction, and kinetic energy lost to braking (absent regenerative braking). Driver behavior can influence all of these. The city mileage of conventional cars is lower than highway mileage due to: 1) a high proportion of idling time, 2) operation mostly at very inefficient low-output engine operating points, and 3) more frequent braking.

The term hypermiler originated from hybrid vehicle driving clubs and Wayne Gerdes in particular. As people began comparing fuel efficiency, they noticed that by using certain driving techniques, they could greatly improve their mileage. With the aid of real time mileage displays, drivers were able to refine these driving techniques and greatly exceed the EPA rating for their vehicle. Decades before the word 'hypermiler' was used, the techniques were used in events such as Mobil Economy Run dating to 1936. Gas rationing during World War II forced some drivers to adopt these techniques, but they largely fell out of favor with the population after the war. Hypermiler Wayne Gerdes can get 59 MPG in a Honda Accord and 30 MPG in an Acura MDX.

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