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Item #:
5224700
Marvel Mystery Oil Original Motor Treatment, Engine Oil & Fuel Treatment Additive, Cleans and Lubricates Fuel System, Prevents Leaks, Improves Engine
Item #:
5224700
NZD 47
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
Order now and get it around Sunday, July 19
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Marvel Mystery Oil provides vehicle owners the ability to solve scores of automotive ailments with one product that can be added to both oil and fuel.
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What Stands Out
Versatile Use
Marvel Mystery Oil is ideal for various applications, including automotive, marine, and household uses, making it a go-to solution for engine maintenance and lubrication. It addresses multiple user needs effectively.
Improves Performance
Designed to enhance engine performance, this oil reduces friction, cleans components, and protects against wear, ensuring lasting efficiency and reliability compared to standard oils in the market.
Pack of Two
Offering a value pack of two 16 fl oz bottles, customers enjoy extended supply for their maintenance needs, providing convenience and savings over purchasing single units from competitors.
Product Details
- 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
| Container Type | Bottle |
| Compatible with Vehicle Type | Car |
| Automotive Fit Type | Universal Fit |
| Liquid Volume | 32 Fluid Ounces |
| Brand Name | Marvel Mystery Oil |
| Manufacturer Part Number | 50721 |
| UPC | 077874507218 074660507216 |
| Global Trade Identification Number | 00074660507216 |
| Manufacturer | Marvel Mystery Oil |
| Size | 16 oz. (2-Pack) |
| Model Number | 50721 |
| Item Weight | 0.01 Ounces (0.28 grams) |
| Included Components | 2 bottles of MM12R 16oz. Marvel Mystery Oil |
| Unit Count | 32.0 Fluid Ounces |
| Brand | Marvel Mystery Oil |
| Package Information | Bottle |
| Vehicle Service Type | Car |
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.
What's in the box
2 bottles of MM12R 16oz. Marvel Mystery Oil
Who Should Buy?
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Car Enthusiasts
Perfect for those who maintain classic cars, providing lubrication and cleaning benefits to preserve engine life.
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Home Mechanics
A great solution for DIY mechanics needing a versatile oil for various applications like cleaning, lubricating, and penetrating.
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Small Engine Users
Beneficial for individuals using small engines in lawn mowers or snow blowers, enhancing performance and maintenance.
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Heavy Duty Users
Not suitable for extreme heavy-duty machinery requiring specialized lubricants beyond general-purpose oil performance.
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Professional Mechanics
May not meet the specific needs of professional mechanics seeking high-performance oils for specialized applications.
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Sensitive Environments
Not ideal for use in environments sensitive to petroleum products or where biodegradable oils are mandated.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is Marvel Mystery Oil and how does it work?
Answer: Marvel Mystery Oil is a multifunctional treatment designed for engine oil and fuel systems. It works by cleaning and lubricating vital engine components, thereby reducing friction and wear. The additive helps to prevent engine leaks and improves fuel economy by ensuring better combustion. For instance, when added to your vehicle's gas tank or oil, it can enhance performance and prolong engine life, particularly in older vehicles or those experiencing issues like rough idling. -
Question:
How often should I use Marvel Mystery Oil in my engine?
Answer: The frequency of using Marvel Mystery Oil can depend on your vehicle's needs and usage. A general recommendation is to add it at every oil change or every 1,500 miles when using it as a fuel treatment. Regularly incorporating it into your maintenance routine can maximize its benefits, like reducing engine noise and improving overall efficiency, making it particularly useful for high-mileage vehicles. -
Question:
Can Marvel Mystery Oil help with engine leaks?
Answer: Yes, Marvel Mystery Oil can help prevent and even reduce engine leaks. Its unique formulation allows it to swell rubber seals and gaskets, thereby sealing minor leaks. By maintaining these components, it can extend the overall life of your engine. For example, if you notice oil stains under your vehicle, adding Marvel Mystery Oil could be a proactive way to alleviate the issue before it becomes more serious. -
Question:
Is Marvel Mystery Oil safe for all types of engines?
Answer: Marvel Mystery Oil is generally safe for use in all types of engines, including gasoline and diesel. It’s compatible with conventional and synthetic oils, ensuring versatility. However, it’s always recommended to check your vehicle's manual or consult with a mechanic before use, especially in high-performance engines. For instance, using it in a classic car can help restore and improve performance due to its cleaning properties. -
Question:
What are the benefits of using Marvel Mystery Oil for fuel treatment?
Answer: Adding Marvel Mystery Oil to your fuel can clean the fuel injectors and combustion chambers while reducing engine knocking. The treatment enhances fuel stability, which is particularly beneficial for vehicles that sit idle for extended periods. Drivers can expect improved fuel efficiency and reduced emissions, making it ideal for vehicles used in stop-and-go traffic or short trips. -
Question:
Can I use Marvel Mystery Oil in both my car's oil and fuel?
Answer: Absolutely! Marvel Mystery Oil is designed to be versatile, which means you can safely use it in both your engine oil and fuel tank. This dual application allows for comprehensive cleaning and lubrication of both systems. For example, using it in your engine oil may enhance lubrication while using it in your fuel can ensure cleaner combustion, giving you the best of both worlds. -
Question:
Does Marvel Mystery Oil improve fuel economy?
Answer: Yes, it does. Marvel Mystery Oil can lead to improved fuel economy by optimizing engine performance and reducing friction within the engine. By ensuring a cleaner combustion process, vehicles can run more efficiently, thereby consuming less fuel. This is particularly notable when used regularly as part of your vehicle's maintenance routine, leading to better mileage over time. -
Question:
Is Marvel Mystery Oil effective in cold weather?
Answer: Yes, Marvel Mystery Oil is effective in cold weather conditions. It helps to maintain proper oil viscosity, which is vital for engine startup during colder months. The additive ensures better flow and lubrication, reducing wear during those initial key turns. For instance, using it in winter months can help mitigate issues like hard starts and sluggish engine performance in low temperatures. -
Question:
How can Marvel Mystery Oil clean my fuel system?
Answer: Marvel Mystery Oil cleans the fuel system by removing carbon deposits and varnish buildup from injectors and combustion chambers. Its formula breaks down residues, allowing for a more efficient flow of fuel. Regular use can help maintain your fuel system in optimal condition, resulting in smoother engine performance and reduced emissions. It’s a great choice for maintaining older vehicles that may have accumulated deposits over time. -
Question:
Where can I buy Marvel Mystery Oil in Cook Islands?
Answer: You can buy Marvel Mystery Oil Original Motor Treatment on Ubuy in Cook Islands. Ubuy offers a convenient platform to purchase this effective engine treatment, ensuring you have access to reliable and quality products for your vehicle's maintenance needs.
Marvel Mystery Oil Engine & Oil 50721 Editorial Review
Marvel Mystery Oil (MMO) is a well-known old-school oil and solvent that can clean and loosen many aged and abused parts. It can be used as a fuel additive or oil additive. For fuel, MMO recommends using 4 oz. per every 10 gallons of gasoline to lubricate and clean the engine. It can also be used as a motor oil additive, adding 1 quart of MMO in place of 1 quart of regular oil. MMO is recommended before or after changing oil, and to use a 5-minute flush before changing the oil. It is also safe to use with synthetic oils. Users have reported positive experiences with adding MMO to their vehicles, with claims of better engine performance, reduced oil burning/leaking/knocking, and smoother acceleration. MMO has the potential to clean and clear dirty engine components but shouldn't be used to replace TCW-3 outboard oil. MMO is a cost-effective option as it reduces fuel Consumption enough to pay for itself. Although this product can be pricey, purchasing it online is often the most value for your money.
Customer Reviews & Ratings
2141 customers ratings
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5 Star
85%
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4 Star
10%
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3 Star
3%
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2 Star
1%
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1 Star
1%
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Pros
- Cleans and clears dirty engine components
- Positive engine performance reviews from users
- Reduces oil burning, leaking, and knocking
- Cost-effective option that pays for itself through reduced fuel Consumption
Cons
- Some users claim it didn't do anything for their engine
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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NZD 47
Order now and get it around Sunday, July 19
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Features & Benefits
- Long-lasting protection for your engine.
- Restores overall engine performance effectively.
- Suitable for a wide range of engines including cars, motorcycles, and more.
- Improves fuel economy and reduces wear and tear.
- Can be added to both fuel and oil for optimal results.
- Trusted for over 100 years.
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