regular gas + octane booster= ? RON

Originally Posted by cgmg21

You have to remember that the dealership put regular gas in your car when you bought it. I doubt that regular gas will mess up the car. Now if you have a turbo charger or supercharger, then that is a different story & you better go premium. Getting the middle grade is a joke & a waste of money. The reason is that you really have no idea if it is 1% better than regular, or a couple % lower that premium. Everytime you change your oil drop in an octane booster when you fill up your car.