According to the study, an estimated one billion gallons of extra fuel were used up to compensate for the added weight of drivers and passengers from 1960 to 2002. If you look at it another way, 0.7 percent of all the fuel burned in vehicles from 1960 to 2002 has been attributable to passengers who have packed on a few extra pounds. Or, how about this one: 39 million gallons of fuel are burned for each pound gained by the average American. While these numbers will probably make an eco-conscious driver think twice next time they're in line at a fast food joint, it seems unlikely that the majority Americans will slim down for the simple sake of saving fuel.
[Source: Centers for Disease Control and Prevention, Consumer Reports, Green Car Reports | Image: Tobyotter – C.C. License 2.0]