Does adding ethanol to fuel increase or decrease the octane you see advertised on the pump?
Follow up, did refineries change their formulas to account for the change in octane that adding ethanol would affect gasoline? or, is the octane rating just for the gasoline portion and no one knows what ethanol did to the octane ratings?
Follow up, did refineries change their formulas to account for the change in octane that adding ethanol would affect gasoline? or, is the octane rating just for the gasoline portion and no one knows what ethanol did to the octane ratings?
Comment