---
product_id: 181697334
title: "Mannol 300ml Motor Doctor Metal Engine Oil Additive Anti Friction Modern Multifunctional"
brand: "mannol"
price: "€ 21.50"
currency: EUR
in_stock: true
reviews_count: 10
category: "Mannol"
url: https://www.desertcart.pt/products/181697334-mannol-300ml-motor-doctor-metal-engine-oil-additive-anti-friction
store_origin: PT
region: Portugal
---

# Compatible with petrol & diesel engines Viscosity stabilizer boosts oil pressure Anti-wear tech extends engine life Mannol 300ml Motor Doctor Metal Engine Oil Additive Anti Friction Modern Multifunctional

**Brand:** mannol
**Price:** € 21.50
**Availability:** ✅ In Stock

## Summary

> 🛠️ Unlock your engine’s hidden potential with Mannol Motor Doctor!

## Quick Answers

- **What is this?** Mannol 300ml Motor Doctor Metal Engine Oil Additive Anti Friction Modern Multifunctional by mannol
- **How much does it cost?** € 21.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/181697334-mannol-300ml-motor-doctor-metal-engine-oil-additive-anti-friction)

## Best For

- mannol enthusiasts

## Why This Product

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

## Key Features

- • **Cold Start Champion:** Strengthens oil film to reduce wear during engine startup
- • **Extend Engine Longevity:** Advanced anti-wear components minimize friction and wear at any mileage
- • **Fuel Efficiency Booster:** Reduces soot and exhaust smoke, improving combustion and mileage
- • **Restore Peak Oil Pressure:** Viscosity modifier enhances oil flow for smoother engine performance
- • **Universal Engine Compatibility:** Works seamlessly with petrol, diesel, synthetic, and mineral oils

## Overview

Mannol 300ml Motor Doctor is a cutting-edge multifunctional engine oil additive designed to stabilize viscosity, restore oil pressure, and reduce oil consumption in high-mileage engines. Its anti-wear formula extends engine life by minimizing friction, while compatibility with all engine types and oils ensures versatile use. Ideal for professionals seeking to maintain peak engine performance and fuel efficiency, this additive supports smoother cold starts and cleaner combustion, making it a must-have for modern engine care.

## Description

Modern multifunctional additive in engine oil - a viscosity stabilizer designed to restore oil pressure and reduce its consumption in engines with high mileage. Product properties: - A special modifier increases the oil viscosity index, which prevents oil from entering the combustion chamber, which in turn reduces soot formation and eliminates exhaust gas smoke; - Anti-wear components minimize wear on engines with any mileage and extend their service life; - Improves the stability and strength of the oil film on the rubbing parts of the engine, which facilitates cold start and reduces starting wear; - Especially effective in severe operating conditions and when oil is diluted with fuel; - Suitable for petrol and diesel engines and all types of engine oils (synthetic, mineral, etc.) Color: yellow-brown. Application: Add to fresh engine oil at each oil change after the engine reaches operating temperature. The contents of one container are sufficient for lubrication systems up to 5 liters of oil.

Review: Better than advertised,brilliant. - Just like the Mannol diesel (fuel) additive,the product is brilliant.Added to sump oil in a 1.6 hdi Peugeot engine of around 87000 vintage,the immediate difference was impressive,engine was smooth before but even quieter with the Mannol additive.Rgarding ratio I just introduced it with a 3.5 litre oil change,(total fluid including filter) and 1600 miles later the oil is noticeably clearer than before,ie not blackening within the first 100 miles post-change.Before the oil change I used Mannol engine flush as it's the only one you can safely drive for around 50 miles while it's in circulation,and that certainly left the engine interior very clean prior to renewing sump oil.Possibly due to using these Mannol products,I'm not certain,but in the 5 years I've had my car ,mostly urban runs,traffic etc with little motorway use,it's averaged 40mpg at best,38mpg mostly,and that was on premium/regular diesel mixed,but since feeding it's systems with the Mannol diet that mileage has shot up to a sustained 50+ mpg,and that's with heavy trailer use,town runs etc,absolutely brilliant stuff,I would recommend Mannol to anyone,especially at the desertcart prices and delivery etc.
Review: Great Stuff - Great stuff,does what it says on the tin

## Features

- PRODUCT INFO: Modern multifunctional additive in engine oil - a viscosity stabilizer designed to restore oil pressure and reduce its consumption in engines with high mileage.
- PRODUCT PROPERTIES: Anti-wear components minimize wear on engines with any mileage and extend their service life.
- ADDITIONAL INFO: Suitable for petrol and diesel engines and all types of engine oils (synthetic, mineral, etc.).
- APPLICATION: Add to fresh engine oil at each oil change after the engine reaches operating temperature.
- ATTENTION: The contents of one container are sufficient for lubrication systems up to 5 litres of oil.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ZPO6UFK |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 64,213 in Automotive ( See Top 100 in Automotive ) 577 in Car Engine Oils |
| Colour | Yellow-Brown |
| Customer Reviews | 4.5 4.5 out of 5 stars (206) |
| Date First Available | 23 Oct. 2015 |
| Item Package Quantity | 1 |
| Item Weight | 308 g |
| Item model number | MN9990-030ME |
| Manufacturer | MANNOL |
| Material | Mineral-based |
| Part number | MN9990-030ME |
| Product Dimensions | 7.5 x 7.5 x 9.5 cm; 308 g |
| Size | 300ml |
| Specific uses | Increase Efficiency |

## Product Details

- **Brand:** MANNOL
- **Item weight:** 308 Grams
- **Liquid volume:** 300 Millilitres
- **Material:** Mineral-based
- **Package information:** Tin

## Images

![Mannol 300ml Motor Doctor Metal Engine Oil Additive Anti Friction Modern Multifunctional - Image 1](https://m.media-amazon.com/images/I/81fM1y4O-WL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than advertised,brilliant.
*by J***R on 15 July 2025*

Just like the Mannol diesel (fuel) additive,the product is brilliant.Added to sump oil in a 1.6 hdi Peugeot engine of around 87000 vintage,the immediate difference was impressive,engine was smooth before but even quieter with the Mannol additive.Rgarding ratio I just introduced it with a 3.5 litre oil change,(total fluid including filter) and 1600 miles later the oil is noticeably clearer than before,ie not blackening within the first 100 miles post-change.Before the oil change I used Mannol engine flush as it's the only one you can safely drive for around 50 miles while it's in circulation,and that certainly left the engine interior very clean prior to renewing sump oil.Possibly due to using these Mannol products,I'm not certain,but in the 5 years I've had my car ,mostly urban runs,traffic etc with little motorway use,it's averaged 40mpg at best,38mpg mostly,and that was on premium/regular diesel mixed,but since feeding it's systems with the Mannol diet that mileage has shot up to a sustained 50+ mpg,and that's with heavy trailer use,town runs etc,absolutely brilliant stuff,I would recommend Mannol to anyone,especially at the Amazon prices and delivery etc.

### ⭐⭐⭐⭐⭐ Great Stuff
*by M***R on 9 May 2025*

Great stuff,does what it says on the tin

### ⭐⭐⭐⭐ Good quality.
*by T***Y on 19 October 2025*

Very good product will use it again.

## Frequently Bought Together

- Mannol Motor Oil Additive
- LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-12*