Marvel Mystery Oil lubricates the entire fuel system-fuel pumps fuel injectors or carburetors and the top-portion of the cylinders. 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. Marvel Mystery Oil reduces and prevents varnish and gum build-up two key contributors to robbing engine performance. Spark plug life is also extended by using Marvel Mystery Oil in your fuel. Marvel creates a cleaner burning cylinder environment that reduces carbon build-up on spark plugs. In addition Marvel Mystery Oil improves fuel mileage by reducing internal friction in the engine.
Most products and orders placed before 1 PM MST leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.