Safe for catalytic converters and oxygen sensors. Added to gas it cleans and lubricates fuel injectors and carburetors, improves gasoline mileage and extends spark plug life. Reduces and prevents varnish and gum build-up. Added to oil it prevents valve sticking and clatter, fortifies properties of engine oil, prevents breakdown caused by extreme temperatures, reduces and prevents acid and sludge formation and promotes easier cold weather starts.
- 32 oz
- Add to gasoline for better gas mileage
- Lubricates like lead
- Prevents sticking rings and valves
- Improves compression
- Reduces cylinder wear
- Will not harm catalytic converters
- Also add to crankcase to extend life of oil
- Extra protection in hot and cold weather
- Add 8 oz. per tank of gas or 20% of total crankcase capacity at oil changes
- Perfect for marine engines
- Added to gas or diesel.
Add to gasoline:
- Helps improve fuel economy
- Cleans and lubricates fuel injectors and carburetors
- Reduces and prevents varnish and gum build-up
Add to engine oil:
- Prevents valve sticking and clatter
- Prevents oil breakdown caused by extreme temperatures
How Do I Use:
Marvel should be used in the fuel at every fill-up. Use 4 ounces for every 10 gallons of fuel. You should also add Marvel to your engine oil at every oil change. In a traditional automobile engine with a 5 quart oil capacity, simply replace one of the engine oil quarts with a quart of Marvel. For your convenience, MM13R is the quart size of Marvel Mystery Oil. Marvel is also safe and effective to use with synthetic and synthetic-blend motor oils.
