Car Craft has been doing tech stories on E85 fuel longer than any other performance-car magazine. By now it should be well known, but in case this is news to you, E85 is an alcohol-based fuel blend of ...

E85 is a blend of 85 percent Ethanol, a grain-alcohol made from corn, and 15 percent gasoline. This mixture gives the fuel a much higher octane rating than gasoline, and is cheaper than pump gas, race ...