Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
Hero image 0 of Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz., 0 of 8
Best seller

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

4.8 stars out of 987 reviews
(4.8)|
987 ratings
Pack Size:Single

Key item features

  • Enhanced Lubrication: Provides positive lubrication for smoother starting and longer tool life.
  • Gum and Sludge Removal: Dissolves gum and sludge that reduce tool speed and power output.
  • Rust Prevention: Prevents rust and corrosion, ensuring longevity of engine parts.
  • Improved Performance: Enhances compression, power, and miles per gallon (MPG).
  • Versatile Use: Suitable for conventional, synthetic, 2 and 4 cycle oils, and all gas types including diesel and ethanol blends.
  • Upper Cylinder Lubrication: Lubricates the upper cylinder to maintain peak performance.
  • Convenient Size: Available in a handy 32 oz bottle for easy use.
  • Combustible Warning: Harmful or fatal if swallowed; product is also combustible.
Generated by AI
Current price is Now $6.58
You save $9.96
was $16.54
20.6 ¢/fl oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $6.58
One-time purchase $6.58

How do you want your item?

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.
How do you want your item?
Columbus, 43215
Arrives by Thu, Feb 5
.
Order within 10 hr 6 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible

More seller options (5)

Starting from $13.99
walmart plus

Get free delivery, shipping and more*

*Restrictions apply
Try Walmart+ now

About this item

Product details

Specifications

Directions

Warranty

Warnings

Frequently bought together

Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz. $6.58 Was $16.54 20.6 ¢/fl oz

Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
current price Now $6.58, Was $16.54
20.6 ¢/fl oz

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

4.8 out of 5 Stars. 987 reviews

1000+ bought since yesterday Great Value Pack of 10 Puncture Resistant Nitrile Disposable Multipurpose Cleaning Gloves, Blue $1.98 19.8 ¢/ea

1000+ bought since yesterday
Great Value Pack of 10 Puncture Resistant Nitrile Disposable Multipurpose Cleaning Gloves, Blue
current price $1.98
19.8 ¢/ea

Great Value Pack of 10 Puncture Resistant Nitrile Disposable Multipurpose Cleaning Gloves, Blue

4.6 out of 5 Stars. 3567 reviews

Best seller Lysol® Disinfectant Wipes Bundle, Multi-Surface Antibacterial Cleaning Wipes, For Disinfecting & Cleaning, 320 count $14.97 $4.68/100 ct

Best seller
Lysol® Disinfectant Wipes Bundle, Multi-Surface Antibacterial Cleaning Wipes, For Disinfecting & Cleaning, 320 count
current price $14.97
$4.68/100 ct

Lysol® Disinfectant Wipes Bundle, Multi-Surface Antibacterial Cleaning Wipes, For Disinfecting & Cleaning, 320 count

4.8 out of 5 Stars. 3453 reviews

Best seller HyperTough 500LM Rechargeable LED Spotlight, Build-in 2000mAh Lithium-Ion Battery, Hand-free use $12.62

Best seller
HyperTough 500LM Rechargeable LED Spotlight, Build-in 2000mAh Lithium-Ion Battery, Hand-free use
current price $12.62

HyperTough 500LM Rechargeable LED Spotlight, Build-in 2000mAh Lithium-Ion Battery, Hand-free use

4.6 out of 5 Stars. 287 reviews
Current price is
$36.15
was $46.11
Items may be delivered on different dates

Customer ratings & reviews

4.8 out of 5 stars
stars987 ratings450 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.
Generated by AI

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 450 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!

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?1ZVE2WA5RR1316889008
reply from TurtleWax

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

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?1ZVE2WA5RR1316889008