Product Description

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.

Product Features

• Spark plug life is also extended by using Marvel in your fuel
• Improves fuel mileage by reducing internal friction in the engine
• Note for diesel fuel users: this diesel fuel additive does not comply with federal low sulfur content requirements for use in model 2007 and newer diesel motor vehicles