Groovy Grape. The smell of victory has never been better!Why deal with the nauseous exhaust fumes from your race vehicle, when you could be sniffing root beer, pina colada, or bubble gum instead? Fuel fragrances eliminate unpleasant exhaust fumes and the eye, nose, and throat irritation that come with them. Just mix them in with your regular fuel--one 4 oz. bottle treats 30 gallons of alcohol or 20 gallons of gas.