around here it's only a extra buck or two to tank up on 93* instead of 87* so if the car likes it after a tank it's not a big deal, i need to run 93* because i have chips in my cars but i can't remember running the cheep stuff because the last several cars i have had have ether needed preimum or could of atleast used it's benifits (turbo volvos with the boost turned up)