Marvel Mystery Fuel Additive For All Marine Engines 1 gal

Marvel Mystery Oil® lubricates the entire fuel system: fuel pumps, fuel injectors or carburetors and the top-portion of the cylinders. These are areas, that by design, motor oil does not reach. Using Marvel Mystery Oil® in your fuel extends the life of these vital components by providing them with lubrication that fuel alone does not provide.W hen added to engine oil, Marvel Mystery Oil® reduces and prevents valve sticking and clatter by breaking down harmful deposits of carbon and sludge.