Not one mechanic I've spoken with said they would be comfortable with a 15% blend of ethanol in their personal car. However, most suggest that if the government moves the ethanol mandate to 15%, it will be the dawn of a new golden age for auto mechanics' income.For Wallace, the problems with corn ethanol (the net energy loss, the increased smog, the reduced mileage) are notable but not as important as the trouble that ethanol gives today's non-flex-fuel engines. And potential engine trouble will be here no matter if the biofuel is made from corn or another process. The Minnesota Ag Department and Underwriters Laboratories both says the higher blend is OK for gas station pumps, but it's looking like we're going to need another round of debate on the value of putting E15 in vehicles not designed for it.
[Source: Business Week]