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.

1,264 ratings
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
Pack SizeSingle

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

Specs

Product net content parent, 32 Fluid OuncesCompatible cars, MultipleVehicle fitment type, UniversalManufacturer, Turtle WaxRec. use, AutomotiveAutomotive additive type, Superior Cleaning for Engines & Fuel Systems

About this item

Product details

Marvel Mystery Oil offers long lasting protection to your car's hard-working engine, by cleaning and adding a lubricating layer unparalleled by the other so called Motor Treatments. Marvel Mystery Oil is one product with a variety of uses and benefits. Add Marvel to your gas tank to restore overall engine performance since it provides superior cleaning, reduces wear and tear, creates top end lubrication and sludge control and much more. Marvel's benefits are not limited to automotive vehicles but can help anything with an engine. Try in motorcycles, farm equipment, lawn equipment, chain saws, marine vehicles, and ATVs.
  • 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
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Product net content parent

32 Fluid Ounces

Compatible cars

Multiple

Vehicle fitment type

Universal

Manufacturer

Turtle Wax

Directions

Instructions

. Directions for Use:. Usage: In fuel, Rate: 4 ounces treat 10 gallons. Usage: Oil, Rate: Replace up to 20% of oil with MMO. Usage: 4-cycle, Rate: ½ to 1 ounce per gallon. Usage: 2-cycle, Rate: ½ to 1 ounce per gallon

Safe Handling Instructions

DANGER: HARMFUL OR FATAL IF SWALLOWED. COMBUSTIBLE. Contains petroleum distillates. If swallowed, do not induce vomiting. Contact a physician immediately. 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.

Warranty

Warranty information

All products come with a 90 Day, or longer, manufacturer warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

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Customer ratings & reviews

4.8 out of 5 stars
stars
1,264 ratings500 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars87% (1,105)
  2. 4 stars8% (102)
  3. 3 stars2% (26)
  4. 2 stars1% (9)
  5. 1 star2% (22)

Reviews summary

Pros

  • : Provides a good amount of product for the cost.
  • : Improves engine performance and fuel efficiency over time.
  • : Helps increase gas mileage in various vehicle types.
  • : Keeps engines clean and running smoothly.
  • : The additive removes deposits and preserves delivery function.

Cons

  • : The additive reduces tinny and knocking sounds.
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Showing 1-3 of 500 reviews

Nov 3, 2026
Reviewer name: Derek
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mystery.

What's in it? nobody knows but it's a mystery. I also really like it.

Helpful?1ZVE2WA5RR1316889008
Jul 24, 2026
Reviewer name: randy
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Thank You one of the container's was open and 25% used by????

Helpful?1ZVE2WA5RR1316889008
Jul 24, 2025
Reviewer name: william
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

needs put in a card board box, bag was torn when I received it.

Helpful?1ZVE2WA5RR1316889008
Current price is $6.5820.6 ¢/fl oz
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