Consumer Reports reports that the EPA has changed that little problem by posting the fuel efficiency information of used vehicles on its fueleconomy.gov website. These aren't new fuel economy numbers, but the EPA did apply the updated fuel economy logic that was instituted in 2008. So if your original 1995 Honda Civic was once quoted at 40 miles per gallon, the new fuel economy number is 33 mpg. The EPA is tracking fuel economy dating back to 1984, too, so car buyers can go back before many Autoblog readers were even born.
The EPA is hoping that anyone selling a vehicle will use the tool as well. Dealers, for example, can print up the window sticker and place it on the window of the vehicle being sold, giving the "sold as is, no warranty" caveat some competition on the passenger-side window.
[Source: Consumer Reports]