Well,,all of your Big 3 auto makes filed complaints last month with the EPA,,,as to E-15 gas,,that the gas stations are going to start eventually selling come end of this Sept,,will maybe void their warrantees....and as for gas mileage..forget it burning alcohol..you get less power and less mileage burning it,,and besides,,it will eat up parts of your engine..So buy what you want..they all run pretty good as long as you take care of them with alittle tenderloving care.