- Home Page /
- Automotive /
- Oils & Fluids /
- Additives /
- Engine & Oil /
- Marvel Mystery Oil Original Motor Treatment, ...
0 ratings
Item #:
231923205
Marvel Mystery Oil Original Motor Treatment, Engine Oil & Fuel Treatment Additive, Cleans and Lubricates Fuel System, Prevents Leaks, Improves Engine
89% of respondents would recommend this to a friend
Item #:
231923205
XCD 60
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, September 12
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Keep your engine running smoothly with Marvel Mystery Oil!
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Engine Performance Boost
Enhances overall engine performance while ensuring smooth operation, providing drivers with increased efficiency and reduced wear during regular use.
Fuel System Cleaner
Effectively cleans fuel systems, removing deposits and contaminants that can hinder performance, thus contributing to improved fuel economy over time.
Leak Prevention
Prevents leaks by ensuring proper lubrication throughout the engine, leading to extended engine life and lower maintenance costs for vehicle owners.
Product Details
- Kit includes (2) 16oz. bottles of Marvel Mystery Oil additive
- Cleans and lubricates fuel injectors and carburetors
- Reduces and prevents varnish and gum build-up
- Prevents valve sticking and clatter
- Prevents oil breakdown caused by extreme temperatures
- Unleashes maximum power and performance, while extending engine life
| Brand Name | Marvel Mystery Oil |
| Manufacturer Part Number | 50721 |
| UPC | 077874507218 074660507216 |
| Number of Packs | 2 |
| Global Trade Identification Number | 00074660507216 |
| Manufacturer | Marvel Mystery Oil |
| Size | 16 Fl Oz (Pack of 2) |
| Unit Count | 32 Fluid Ounces |
| Included Components | (2) 16 oz Bottles of Marvel Mystery Oil Additive |
| Item Type Name | Fuel and Oil Additive |
| Item Weight | 0.27 g |
| Model Number | 50721 |
| Container Type | Bottle |
| Compatible with Vehicle Type | Car, Truck |
| Flash Point | 73.9 u00b0C |
| Automotive Fit Type | Universal Fit |
| Liquid Volume | 32 fluid ounces |
| Brand | Marvel Mystery Oil |
| Package Information | Bottle |
| Vehicle Service Type | Car, Truck |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Car Enthusiasts
Those who love maintaining their vehicles can benefit greatly from improved engine performance and efficiency.
-
Older Vehicles
Drivers of classic or older cars may find this product helps reduce leaks and improve overall engine health.
-
Frequent Travelers
Individuals who drive long distances may appreciate enhanced fuel economy and reduced engine wear.
-
New Vehicles
Modern cars typically do not require additives and may be better off using manufacturer-recommended products.
Product Description
Marvel Mystery Oil Original Motor Treatment, Engine Oil & Fuel Treatment Additive, Cleans and Lubricates Fuel System, Prevents Leaks, Improves Engine Performance and Fuel Economy, 16 oz. (Pack of 2) | Engine Oil & Fuel Treatment Additive, Cleans & Lubricates Systems, Prevents Leaks, Improves Engine Performance & Fuel Economy
About This Item
Introducing Marvel Mystery Oil MM12R - 16 Fl Oz., your ultimate engine companion for optimal performance and maintenance! Are you looking for an additive that will enhance the performance and longevity of your engine? Look no further than Marvel Mystery Oil MM12R. This specially formulated oil additive is designed to deliver exceptional lubrication and protection, ensuring smooth operation and reducing friction in your engine. Marvel Mystery Oil MM12R is not just for cars, it's also perfect for motorcycles and other engines. Whether you have a high mileage vehicle or an older engine, this oil additive will work wonders.
It cleans your engine, improves compression, and reduces engine noise, making it perfect for older engines that may be experiencing signs of wear and tear. But Marvel Mystery Oil MM12R doesn't just stop at cleaning and improving engine performance. It also extends the life of your engine by providing enhanced lubrication, reducing friction, and protecting against wear and tear. This means you can enjoy a smoother and more efficient engine for years to come. With Marvel Mystery Oil MM12R, you can also optimize your fuel system.
Its unique formula helps to remove deposits and build-up, ensuring that your fuel system is clean and working at its best. You'll notice improved fuel efficiency and a decrease in engine-related issues, saving you time and money in the long run. Don't settle for less when it comes to your engine's maintenance and performance. Choose Marvel Mystery Oil MM12R for the ultimate engine treatment.
Trust the brand that has been trusted for over 90 years. Experience the power of Marvel Mystery Oil MM12R - 16 Fl Oz. Pack of 2 and unlock the full potential of your engine. Order now and give your engine the care it deserves.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is Marvel Mystery Oil MM12R used for?
Answer: Marvel Mystery Oil is a versatile product designed to enhance engine performance, reduce wear, and improve fuel efficiency. Primarily, it’s used for cleaning and lubricating engine parts, removing sludge, and preventing rust formation. Car enthusiasts often add it during oil changes to rejuvenate older engines and improve overall function. By keeping your engine clean and functioning smoothly, it can prolong the life of your vehicle. -
Question:
What are the benefits of using Marvel Mystery Oil?
Answer: Using Marvel Mystery Oil provides several benefits, including improved engine lubrication, enhanced fuel economy, and reduced engine noise. It effectively cleans fuel injectors and carburetors, which leads to better combustion and higher performance. Many users report smoother engine operation, particularly in older vehicles, making it a go-to product for those looking to maintain or enhance engine efficiency. -
Question:
How do you apply Marvel Mystery Oil?
Answer: Applying Marvel Mystery Oil is simple. For regular maintenance, add it to your engine oil during an oil change—generally recommended at a rate of one ounce per quart. It can also be added to the fuel tank—typically, one ounce for every gallon of fuel. This ensures your fuel system stays clean and helps maintain engine health, particularly for those who drive frequently or in demanding conditions. -
Question:
Is Marvel Mystery Oil safe for all engine types?
Answer: Yes, Marvel Mystery Oil is safe for use in all gasoline and diesel engines, including classic and modern vehicles. Its blend of high-quality mineral oil and petroleum-based solvents does not harm metal components and is compatible with conventional and synthetic oils. This versatility makes it a popular choice among mechanics and DIYers who want to ensure optimal performance across various engine types. -
Question:
Can Marvel Mystery Oil help with fuel efficiency?
Answer: Definitely! Marvel Mystery Oil is known to enhance fuel efficiency by cleaning the fuel system and improving combustion. When fuel injectors and combustion chambers are free of deposits, your engine runs smoother and uses fuel more efficiently. This is especially noticeable in older vehicles, where carbon buildup might otherwise lead to decreased fuel performance. Users often praise its effectiveness in restoring lost fuel economy. -
Question:
What should I expect after using Marvel Mystery Oil?
Answer: After using Marvel Mystery Oil, you can expect smoother engine operation, reduced noise, and improved fuel efficiency. Many users report noticeable differences almost immediately, such as quieter engine sounds and better throttle response. Over time, it can also help to prolong engine life by preventing sludge buildup and protecting vital components, thereby enhancing overall vehicle reliability. -
Question:
How often should I use Marvel Mystery Oil?
Answer: For optimal results, it is recommended to use Marvel Mystery Oil every oil change or approximately every 3,000 miles. In addition, adding it to your fuel tank every few fill-ups can help maintain cleanliness and performance. This routine keeps your engine well-lubricated and working efficiently, especially if your vehicle is frequently subjected to challenging driving conditions. -
Question:
Is Marvel Mystery Oil effective for older engines?
Answer: Yes, Marvel Mystery Oil is particularly beneficial for older engines. It helps clean sludge and deposits that have built up over time and enhances lubrication, which can improve engine performance. Classic car owners often use it to keep aging engines in top shape, ensuring they run smoothly and efficiently, thus preserving the vehicle's value and drivability. -
Question:
Can you use Marvel Mystery Oil in a two-stroke engine?
Answer: Marvel Mystery Oil is generally not recommended for use in two-stroke engines. These engines require a different type of oil specifically formulated for two-stroke systems to ensure proper lubrication and combustion. However, it’s excellent for four-stroke engines, where it can significantly improve engine life and efficiency. Always refer to your engine manual for oil guidelines. -
Question:
Where can I buy Marvel Mystery Oil MM12R - 16 Fl Oz. Pack of 2?
Answer: You can purchase Marvel Mystery Oil MM12R - 16 Fl Oz. Pack of 2 at Ubuy. They offer a wide range of automotive products, making it convenient to find and order the items you need for engine maintenance and performance. Ubuy provides a user-friendly online shopping experience, ensuring you can easily access this essential product.
Marvel Mystery Oil Engine & Oil 50721 Editorial Review
**** Marvel Mystery Oil has long been a staple in engine maintenance, earning its reputation from various customer experiences that highlight its effectiveness as a multi-purpose petroleum product. Users have reported noticeable improvements in engine performance whether the product is added to oil or fuel. A common thread in customer feedback is the drastic improvement in oil pressure, with many specifying that their vehicles show significant enhancements in lubrication and internal cleanliness after treatment. Several reviews detailed specific use cases, such as an older truck with previously low oil pressure that saw its readings climb significantly after adding Marvel Mystery Oil. Another customer noted that after regular applications in their vehicles, issues related to check engine lights linked to O2 sensors were resolved, suggesting a cleaning benefit as advertised by the manufacturer. Users frequently praised the product for its preventative qualities, preventing engine smoking and managing carbon deposits effectively in both gasoline and diesel engines. Moreover, Marvel Mystery Oil has crossed into the realm of lawn and garden equipment, proving its versatility by revitalizing older machines and ensuring they run smoothly after years of disuse. The ease of application and the clear instructions provided by the manufacturer have contributed to positive user experiences, as customers stress the importance of following dosage recommendations for optimal results. Overall, the Consensus is clear: Marvel Mystery Oil is a trusted and reliable addition to any mechanical routine. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Effective in improving oil pressure and engine lubrication.
- Cleans engine internals, helping to remove sludge and carbon deposits.
- Versatile use in both gasoline and diesel engines, as well as small engines like lawn mowers and snowblowers.
- Positive impacts on fuel economy and engine performance noted by multiple users.
- Easy to use with clear dosage instructions.
Cons
- Some users experienced unexpected smoke after using the product, leading to uncertainty about its effects on certain engines.
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
EK
Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
F
fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
LC
Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 60
Order now and get it around Saturday, September 12
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Includes 2 bottles of Marvel Mystery Oil additive (16oz each)
- Cleans and lubricates fuel injectors and carburetors
- Reduces and prevents varnish and gum build-up
- Prevents valve sticking and clatter
- Prevents oil breakdown from extreme temperatures
- Ensures a smoother running engine
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.