Marvel Mystery Oil



Directions for use: Added to engine oil: At your next oil change, replace 20% of your engine oil (traditional or synthetic) with Marvel Mystery Oil®. For example, if your engine has a 5 quart oil capacity, replace one of the quarts with a quart of Marvel Mystery Oil®. Repeat at every oil change for optimal performance. Added to fuel: At every fill-up add 4 ounces of Marvel Mystery Oil® to every 10 gallons of gas or diesel. An average passenger car tank is 15 gallons so you would add 6 ounces at every fill-up. Regular use can lead to improved fuel economy. This diesel fuel additive does not comply with the federal ultra low sulfur content requirements for use in model year 2007 and newer diesel motor vehicles, or model year 2011 and newer diesel nonroad equipment engines. This product contains a chemical known to the state of California to cause cancer and/or birth defects. Close tightly while pushing down turn.



Marvel® Mystery Oil. Since 1923. Add To Gas & Oil. • Helps Extend Engine Life. • Improves Fuel Economy. • Cleans The Engine From The Inside Out. 32 FL. OZ. (1 Quart) 946 ml.

Other Description

Since 1923, Marvel Mystery Oil® has helped increase the life of countless engines of all types! From fighter planes in WWII to exotic sport cars to long-haul trucks and everything in between, those in the know depend on Original Formula Marvel Mystery Oil®. What does Marvel® do? Cleans the engine from the inside out! • When added to your engine oil, Marvel® breaks down and removes harmful deposits of sludge and carbon. Cleaner engines run better and longer! Increases fuel economy! • When regularly added to your fuel, Marvel® keeps spark plugs and fuel injectors free of carbon deposits, resulting in better firing plugs and optimal fuel use! Protects against temperature extremes! • Marvel® fortifies motor oil (both traditional and synthetic) for increased resistance to high temperatures and easier cold weather starting! Enhances overall performance! • Regularly use Marvel® in your oil and fuel for a smoother, quieter engine! For more uses, visit: © Marvel Oil Company.


Danger: Contains petroleum distillates. Harmful or fatal if swallowed. If swallowed, do not include vomiting. Contact a physician immediately. Combustible. Keep away from open spark or flame. Avoid frequent and prolonged contact with skin. Use in a well ventilated area.
Keep out of reach of children.