Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
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Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.

Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.Marvel Mystery Oil Oil Enhancer and Fuel Treatment 32 oz6 pack Marvel Mystery Oil Oil Enhancer and Fuel Treatment 32 oz2 pack Marvel Mystery Oil Oil Enhancer and Fuel Treatment 32 oz12 pack Marvel Mystery Oil Oil Enhancer and Fuel Treatment 32 oz
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Key item features

  • TRUSTED FOR 100 YEARS: Working as both a fuel additive & oil additive, our original formula cleans, lubricates and protects critical engine components to keep your car running smoother and longer
  • ENGINE CLEANER & PROTECTOR: Delivers a protective lubricating film that reduces friction, wear and corrosion inside your engine, extending the life of pistons, cylinders and valves
  • POWERFUL FUEL SYSTEM CLEANER: Removes carbon deposits and gum build-up in carburetors, fuel injectors, and intake valves for improved fuel efficiency and smoother engine performance
  • OIL ADDITIVE & LUBRICANT: Use in engine oil to reduce noise, doubling as a car engine lubricant for smoother start-ups and quieter operations, especially after seasonal storage
  • SAFE FOR ALL ENGINES: Compatible with all gasoline, diesel, and hybrid engines providing year-round protection and performance for cars, trucks, boats, motorcycles, lawn equipment and more
Current price is $6.5820.6 ¢/fl oz
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Customer ratings & reviews

4.8 out of 5 stars
stars
1,153 ratings479 reviews
How item rating is calculated
  1. 5 stars88% (1,009)
  2. 4 stars8% (94)
  3. 3 stars2% (23)
  4. 2 stars0% (5)
  5. 1 star2% (22)

Reviews summary

Pros

  • : Provides a good amount of product for the cost.
  • : Keeps engines clean and running smoothly.
  • : Helps increase gas mileage in various vehicle types.
  • : Improves engine performance and fuel efficiency over time.
  • : Maintains a clean and lubricated fuel system.

Cons

  • : Engine sound is audible during operation.
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Showing 1-3 of 479 reviews

Mar 18, 2025
Michelle
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great for lubricating parts

This is such a wonderful product for an engine. My dad told me when he had several trucks at his business that he got one serviced and the mechanic told him the trucks engine was the most lubricated and well maintained he'd ever seen. Since then I give my car 3 “gulps” every other fill up.

Helpful?1ZVE2WA5RR1316889008
reply from TurtleWax

Thank you for sharing your experience, Michelle!

Feb 18, 2026
JOHNNY
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Gas Gage Works Again

This solution works well with the sticky gasoline gage reader in the tank for your dash readout operation. Otherwise, it will cost you an arm and leg to repair the unit inside the gas tank of it's NON-Reading on your gage panel. Just add what the bottle says to get the results.

Helpful?1ZVE2WA5RR1316889008
Mar 19, 2026
CraigMack
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Been using marvel mystery oil since I was teenager . Imo it's best addictive on market to protect your engine … cylinder heads …. Lubricant… oil and gas addictive . I only use it with my gas … it improves performance and gas mileage and extends life of your engine . After you try bottle you will be hooked !! A product that improves performance… gas mileage and protects your engine !!!

Helpful?1ZVE2WA5RR1316889008