---
product_id: 259792440
title: "MM12R (16oz)"
brand: "marvel mystery oil"
price: "KSh9442"
currency: KES
in_stock: true
reviews_count: 5
category: "Marvel Mystery Oil"
url: https://www.desertcart.co.ke/products/259792440-mm12r-16oz
store_origin: KE
region: Kenya
---

# Fuel injector & carburetor cleaner Eases cold weather starts Prevents oil breakdown & sludge MM12R (16oz)

**Brand:** marvel mystery oil
**Price:** KSh9442
**Availability:** ✅ In Stock

## Summary

> 🔥 Unlock your engine’s hidden potential with Marvel Mystery Oil!

## Quick Answers

- **What is this?** MM12R (16oz) by marvel mystery oil
- **How much does it cost?** KSh9442 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/259792440-mm12r-16oz)

## Best For

- marvel mystery oil enthusiasts

## Why This Product

- Trusted marvel mystery oil brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Oil Fortifier:** Enhances engine oil to prevent sludge and acid buildup
- • **Spark Plug Saver:** Extends spark plug life by reducing deposits
- • **Emission Friendly:** Safe for catalytic converters and oxygen sensors
- • **Engine Revitalizer:** Cleans fuel injectors & carburetors for peak performance
- • **Cold Start Champion:** Promotes smooth ignition even in freezing temps

## Overview

Marvel Mystery Oil MM12R (16oz) is a versatile engine treatment that cleans fuel systems, fortifies engine oil, and improves cold starts. Safe for catalytic converters and oxygen sensors, it reduces varnish, gum, and sludge buildup while extending spark plug life and enhancing fuel efficiency.

## Description

Marvel Mystery Lubricating Oil is safe for catalytic converters and oxygen sensors. Added to gas it cleans and lubricates fuel injectors and carburetors, improves gasoline mileage, extends spark plug life, reduces and prevents varnish and gum build-up. Added to oil it prevents valve sticking and clatter, fortifies properties of engine oil, prevents breakdown caused by extreme temperatures, reduces and prevents acid and sludge formation and promotes easier cold weather starts.

Review: This is great stuff. Use in gas or oil for extra lubrication. Stop engine smoking
Review: Saved my smoky lawn mower!, great product!

## Features

- Brand: Marvel Mystery
- Refer to the packaging for information on use
- Volume: 16 Oz
- Excellent Pick for you

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0009JKGKG |
| Best Sellers Rank | #187,432 in Beauty ( See Top 100 in Beauty ) #1,815 in Body Oils |
| Brand | Marvel Mystery Oil |
| Customer Reviews | 4.7 4.7 out of 5 stars (561) |
| Date First Available | 7 August 2012 |
| Item Weight | 472 g |
| Item model number | MM12R |
| Manufacturer Part Number | 50094 |
| Product Dimensions | 22.86 x 10.16 x 5.08 cm; 471.74 g |
| Viscosity | 5W-30 sae_grade |

## Product Details

- **Brand:** Marvel Mystery Oil
- **Liquid volume:** 16 Fluid Ounces
- **Package information:** Bottle
- **Vehicle service type:** Car, Truck
- **Viscosity:** 5W-30 sae_grade

## Images

![MM12R (16oz) - Image 1](https://m.media-amazon.com/images/I/71B0yT-59bL.jpg)

## Questions & Answers

**Q: Do you think this will oil a sewing machine?**
A: I am sure that it will but you can also purchase a smaller container,less expensive oil.Just about any type of oil will do.If it is a difficult spot to access you can get a can of spray oil that comes with a small about 1/8th inch diameter 6" tube that fits into the nozzle and can oil a spot that is hard to reach. Oil is ,of course, a lubricant any oil will do.The lighter an oil is the more often yo may have to oil that particular part.Many years ago when I was in High School I made a salad bowl on the Wood Lathe.We had run out stain and I anted to keep the natural wood-look.he next day the shop Teacher brougt in Cooking Oil. That was 52 years ago nd I still have that Sala Bowl and every few years I apply more oil.Now I use Vegatable Oil. I hope this may help You.

**Q: I think i have a clogged oil passage will this product break it up and allow the gunk to pass through?**
A: I found this to be pretty amazing stuff . I had a VW bug (1600cc engine) stored in a back shed for 25 years that I changed the oil and added a pint of Marvel Mystery oil in the change (VW's take 2and1/2 quarts in the change), put some gas down the carb , turned the engine over two or three times and the darn thing fired right up. I don't know if it was luck, German engineering or MMV but the engine kept smoothing out the longer it ran and I'm sure the MMV had something to do with that . To now answer your question , I really can't tell you , but from my experience this stuff is well worth a try and it definitely won't hurt. The price is right. Good luck.

**Q: I have a 2005 Chevy diesel that smokes sometimes, especially after idling. I was told this might help. anyone tried it for that? how'd it work?**
A: I would tend to say not likely. It is a good high quality high detergent oil that is used to help clean deposits out of the engine, but based on the limited info given it sounds like you may have worn out engine parts. It is a great oil for many uses, but I suspect you have deeper problems.

**Q: Can i use mmo for my car tucson 2012 of diesel crdi  engine?**
A: There are tests published that this product isn't a great thing to add to diesel fuel. The packaging says it's fine, but there are independent tests showing it lowers lubricity of fuel which is hard on top end and injectors. Check out archoil 6200 or revx instead for this use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***. on 10 November 2025*

This is great stuff. Use in gas or oil for extra lubrication. Stop engine smoking

### ⭐⭐⭐⭐⭐ Review
*by A***M on 1 January 2023*

Saved my smoky lawn mower!, great product!

### ⭐⭐⭐⭐⭐ Review
*by A***X on 25 April 2025*

Arriver rapide et fidèle à la description

## Frequently Bought Together

- Marvel Mystery Oil CD 2 MM12R - 16 oz., RED
- Gumout 800002231 Carb and Choke Cleaner Jet Spray - 14 oz.
- Gumout 5072866 Starting Fluid - 11 oz.

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-16*