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Audi TDI models trounce EPA fuel economy ratings during “Truth in 48” cross-country efficiency drive
11 September 2013
Three new Audi TDI clean diesel models far exceeded their EPA fuel economy ratings in completing the “Truth in 48” cross-country efficiency drive that covered more than 2,850 miles between Southern California and New York. (Earlier post.)
The challenge taken on by eight drivers over the weekend involved a non-stop drive from Audi Pacific in Torrance, Calif. to Audi Manhattan in New York City. From beginning to end, the drivers could stop no more than four times to fill up with clean diesel fuel provided by Shell Oil Co. They had to reach their destination within 48 hours, traveling at normal highway speeds in the newest Audi TDI models: the 2014 Audi A6 TDI, 2014 Audi A7 TDI and 2014 Audi Q5 TDI.
The driving teams, led by Wayne Gerdes, one of the nation’s leading high-mileage driving experts and owner of CleanMPG.com, included hypermilers and journalists split into a team driving the Audi A6 TDI and a team for the Audi A7 TDI. The Audi Q5 TDI served as a support vehicle carrying spare tires, supplies and luggage.
A6 TDI: 43.561 mpg at an average speed of 62.44 mph. That’s 15% better than the EPA highway mileage and 50% better than the EPA combined rating. The EPA rates the A6 TDI at 24 mpg city / 38 mpg highway / 29 mpg combined driving).
A7 TDI: 42.653 mpg at an average speed of 62.17 mph. That’s 12% better than the EPA highway mileage and 47% better than the EPA combined rating. (The EPA rates the A7 TDI at 24 mpg city / 38 mpg highway / 29 mpg combined driving).
Q5 TDI: 38.623 mpg at an average speed of 61.90 mph. That’s 24.5% better than the EPA highway mileage and 43% better than the EPA combined (The EPA rated the Q5 TDI at 24 mpg city / 31 mpg highway / 27 mpg combined driving).
Overall the leading A6 TDI consumed just 66.08 gallons of clean diesel fuel driving from coast to coast.
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