Walmart has
1-Gallon Marvel Mystery Oil: Oil Enhancer and Fuel Treatment (MM14R) for
$8.39.
Shipping is free w/ Walmart+ (
free 15-day trial) or on $35+ orders, otherwise select free store pickup where stock permits.
Thanks to Community Member
WiseFuel971 for sharing this deal.
Note: Availability for pickup is limited and will vary by location.
Key Features:- Positive lubrication for smoother starting and longer tool life
- Marvel mystery oil gallon dissolves gum and sludge that cut down tool speed and power output
- Prevents rust and corrosion
- Smoother riding and idling
- Helps extend life and peak performance
- Improves compression, power and MPG
- Lubricates upper cylinder
- Use in conventional, synthetic and 2 and 4 cycle oil
- Use in all gas types, including diesel and ethanol blends
- Available in a convenient 1-gallon jug
- Marvel Mystery Oil 1 gallon is the original oil enhancer and fuel treatment
- Danger: harmful or fatal if swallowed, the product is also combustible
Top Comments
104 Comments
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Our community has rated this post as helpful. If you agree, why not thank WiseFuel971
I use this stuff for everything even in the vehicles oil. free ship/store PU where available for plus or with $35min Enjoy hope you like an have a nice day
https://www.walmart.com/ip/Marvel...n/16767858
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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.
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.
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.
ADDED TO ENGINE OIL: 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. Marvel Mystery Oil can be added to engine oil 300 to 500 miles before your next oil change to supplement sludge removal and enhance engine cleaning.
Added to Engine Oil: Add Marvel Mystery Oil to up to 20% of crankcase capacity to improve oil flow and prevent oil thickening in sub-zero temperatures.
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