Select your product and tell us where you’ll be using it to find all the usage and tips you need in order to make the most out of your Marvel product. We also have a selection of helpful FAQs to help find the answers you need quickly.
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.
Use Marvel Mystery Oil in the crankcase to benefit 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.