Max-Guard, when added to competing oils, makes the treated oil perform nearly as well as Royal Purple's fully formulated synthetic motor oils. Outstanding Oxidation Stability to greatly extend oil life and drain intervals. Lower Coefficient of Friction to reduce energy consumption. Max-Guard is compatible and can be mixed with all conventional and synthetic motor oils. Oils treated with Max-Guard last much longer in service without breaking down while keeping engines much cleaner.
Engines run smoother and cooler with less wear, less vibration and fewer repairs .
Max-Guard contains no lead, antimony, chlorine, halogens or other toxic substances. Oils treated with Max-Guard can be disposed in the same manner as any other conventional hydrocarbon lubricant. Add another pint of Max-Guard to crankcase with every oil change. Re-treat each oil change.