The U.S. Department of Energy and the EPA recently introduced stickers that show the fuel economy and emissions of used cars and trucks, similar to those found on new vehicles. Available for download from fueleconomy.gov, the web-friendly labels can also be posted online, and are designed for use by both dealerships and private sellers. Users can search for vehicles from the 1984 model year and newer; unfortunately, information for used plug-in hybrids and electrics is not yet unavailable.
The EPA stresses that the estimates are for vehicles when new. Actual fuel economy numbers depend heavily upon how the car was driven and maintained, as well as the addition of aftermarket modifications that affect vehicle weight or aerodynamics. While the stickers are not yet a requirement for used vehicles, officials expect them to be very popular with both sellers and consumers.