I should have said E-85 not 85 octane, it is 85% ethanol but is said to have a higher octane rating then even the 91 octane regular fuel.
I wouldn't use it and have told my wife and kids not to use it in their cars. But there are people that buy it, then complain that your car/truck runs poorly and gets poor fuel economy. Look around I bet you do have it, the pump should say E-85 it is 85% ethanol and can or should only be used in vehicles that have a yellow fuel cap denoting it is a "flex fuel vehicle"
Don