ADDED TO FUEL: At every fill-up add 4 ounces of Marvel Mystery Oil or Marvel Ultimate Fuel & Motor Treatment to every 10 gallons of gas. Regular use can lead to a cleaner fuel system, valves, and top cylinder.
ADDED TO ENGINE OIL: Use Marvel Mystery Oil or Marvel Ultimate Fuel & Motor Treatment in the crankcase to enhance the cleaning properties of the oil. At your next oil change, replace 20% of your engine oil (traditional or synthetic) with Marvel Mystery Oil or Marvel Ultimate Fuel & Motor Treatment. Repeat at every oil change to remove and help prevent sludge buildup in the oiling system.
ADDED TO FUEL: At every fill-up add 4 ounces of Marvel Mystery Oil or Marvel Ultimate Fuel & Motor Treatment to every 10 gallons of gas.
Regular use can lead to a cleaner fuel system resulting in smoother starts. Helps improve engine compression for more power.
OPTION 1: Remove air cleaner, start engine and let idle, slowly pour 1 once of MMO or Marvel Ultimate Fuel & Motor Treatment into the carburetor or air intake until a light smoke exhausts. Stop engine.
OPTION 2: When air intakes openings are not accessible to MMO or Marvel Ultimate Fuel & Motor Treatment liquid oil fogging, Remove spark plugs. Pour a tablespoon of MMO or Marvel Ultimate Fuel & Motor Treatment through spark plug hole and into each cylinder. Let sit for 2 minutes. Crank engine for up to 10 seconds. Replace spark plugs