Ethanol Quiz

Ethanol is increasingly being added to gasoline to power internal combustion engines. Ethanol companies claim it's a green alternative to regular gasoline; they say consumers don't need a detailed label about its potential risks. But here at EWG, we believe that you have a right to know how ethanol will affect your engines and the environment. Take this quiz to see how much you know about ethanol blends.

Environmental Working Group /// February 17, 2012