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In 2015, two men drove a car through all 48 contiguous U.S. states on less than $300 of diesel fuel, or just eight tankfuls.

During the 8,233 mile trip they achieved a fuel economy of 81.17 miles per gallon, or 2.89 liters per 100 km.
They trounced the official rating for the car they used — a VW Golf TDI rated by the EPA for 31 and 45 mpg in city and highway driving respectively — earning a world record.
How did they do it? By applying a technique know as ‘hypermiling,’ which anyone can use to slash their fuel consumption, no matter which car they drive.

‘Tutelage and inspiration’

The two drivers, Wayne Gerdes and Bob Winger, weren’t new to this: they had, in fact, beaten their own previous record of 77.9 mpg obtained on the same route in 2013.
The very term ‘hypermiling’ was coined by Gerdes in 2004, and it became the Oxford Word of the year in 2008.
Wayne Gerdes with his stock Honda Accord, which he gets as much as 60 mpg out of.
“I defined it is simply as beating the EPA in whatever you own and drive,” he says.
Gerdes hold several other records. He once pushed a Honda Insight hybrid to four times its rating, achieving 220 miles per gallon on a 15-mile drive.
In 2008 he drove a stock Toyota Prius on an all-highway, 805-mile route from New York to Chicago on a single tank of fuel (he arrived with a gallon to spare).
Similarly, last year, he drove a RAM 1500 truck from Los Angeles to Denver on a single tank, while climbing over the Rocky Mountains in mid-winter.
But when asked which of his achievements he is most proud of, he says: “Actually those of others hypermilers behind the wheel, thanks to my tutelage or simply inspiration.”

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