Fuel Fresh is a gasoline preservative and stabilizer that saves you time, money and worry. Stop the oxidation of gasoline and eliminate the gums and varnishes that form after a petroleum product has been stagnant. Fuel Fresh will also clean out your entire fuel system, eliminating harmful residues. Add with each fill up for smoother acceleration and idle. Effective on all forms of gasoline. 32 fluid oz. treats up to 100 gallons.