Marvel Automotive and Marine Engines Diesel and Gasoline Fuel Treatment 16 oz.

Marvel Mystery Oil is all you need to keep your engine in a highly efficient condition. This fuel treatment helps extend engine life by breaking down and removing harmful sludge and carbon deposits in your car oil. When regularly added to your motor oil, this oil treatment helps keep spark plugs and fuel injectors free of carbon deposits, resulting in increased fuel economy. Marvel Mystery’s best fuel additive fortifies motor oil for increased resistance to high temperatures and easier cold-weather starting. Use this best oil additive that is compatible with diesel and gasoline.