(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
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(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.

4.8 stars out of 997 reviews
(4.8)|
997 ratings

Key item features

  • Engine Enhancement: Improves compression, power, and MPG while lubricating upper cylinders for smoother riding and idling.
  • Fuel System Care: Cleans and lubricates fuel injectors and carburetors, dissolving gum and sludge for smoother starting.
  • Corrosion Prevention: Prevents rust and corrosion, extending the life and peak performance of engine components.
  • Versatile Application: Compatible with conventional, synthetic, 2 and 4-cycle oils, and all gas types, including diesel and ethanol blends.
  • Friction Reduction: Reduces friction and wear on key components, extending the longevity of high-friction and heat-exposed parts.
  • Maintenance Aid: Helps maintain engines and ensures efficient operation by reducing and preventing varnish, gum, and sludge build-up.
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Current price is $78.9620.6 ¢/fl oz
Price when purchased online
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  • Free 90-day returns

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Columbus, 43215
Arrives by Mon, Feb 16
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  • 12-pack of Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
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(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz. $78.96 20.6 ¢/fl oz

(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
current price $78.96
20.6 ¢/fl oz

(12 pack) Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.

4.8 out of 5 Stars. 997 reviews

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Customer ratings & reviews

4.8 out of 5 stars
stars997 ratings452 reviews
How item rating is calculated

Reviews summary

Pros
  • : Offered at a competitive price point compared to others.
  • : Used in various types of vehicles and equipment.
  • : Helps to clean and smooth out engines.
  • : Provides better gas mileage with smooth engine operation.
  • : Helps clean fuel injectors and entire fuel system.
Neutral
  • : Can be quiet, but may produce tinny sounds or injector ticks.
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Showing 1-3 of 452 reviews

Mar 7, 2025
Jeff
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

it just seems to work. the engines keep running.

My engines just keep running. I have used this for more than four decades I think. The last two cars I bought new and kept for over 17 years each, one I'm still driving. It is still running perfectly with no problems whatsoever with the engine (or anything else really). Can I tell you this is the reason - NO. Do I think it has helped - YES. I just had the recommended measure to my fuel tank with each fill up.

Helpful?1ZVE2WA5RR1315555223113
reply from TurtleWax

Thank you for your continued loyalty to Our Brand, Jeff! We appreciate you!

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?1ZVE2WA5RR1315555223113
reply from TurtleWax

Thank you for sharing your experience, Michelle!

Aug 5, 2025
Sharon
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Highly Recommended

I use this in both of my vehicles, a family van and a high performance sports car. It's a great fuel or oil additive to keep engines running more smoothly and improve gas mileage. It's easy to use, with a measured and labeled bottle fire the correct amount each time. It's also a value because one bottle has enough to use multiple times.

Helpful?1ZVE2WA5RR1315555223113