---
product_id: 91563971
title: "Engine Oil Additive by Mannol, Oil Treatment for Car Engine, Motor Engine Additive Tin, Motor Doctor 9990, 300ml"
brand: "mannol"
price: "€ 24.29"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/91563971-engine-oil-additive-by-mannol-oil-treatment-for-car-engine
store_origin: FI
region: Finland
---

# Extends engine life Reduces exhaust smoke Restores oil pressure Engine Oil Additive by Mannol, Oil Treatment for Car Engine, Motor Engine Additive Tin, Motor Doctor 9990, 300ml

**Brand:** mannol
**Price:** € 24.29
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock peak engine power and cleaner rides—because your car deserves the best!

## Quick Answers

- **What is this?** Engine Oil Additive by Mannol, Oil Treatment for Car Engine, Motor Engine Additive Tin, Motor Doctor 9990, 300ml by mannol
- **How much does it cost?** € 24.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/91563971-engine-oil-additive-by-mannol-oil-treatment-for-car-engine)

## 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 cold starts, even in harsh conditions.
- • **Revive High-Mileage Engines:** Viscosity stabilizer that restores oil pressure and cuts oil consumption for engines with mileage.
- • **Prolong Your Engine’s Prime:** Anti-wear components extend engine life, keeping your car performing at peak.
- • **Breathe Cleaner, Drive Smarter:** Special modifiers reduce soot formation and eliminate exhaust smoke for a cleaner ride.
- • **Universal Engine Compatibility:** Works seamlessly with petrol, diesel, synthetic, and mineral oils—one additive for all.

## Overview

Mannol Motor Doctor 9990 is a 300ml multifunctional engine oil additive designed to restore oil pressure, reduce oil consumption, and minimize exhaust smoke. Compatible with all engine types and oils, it enhances oil viscosity, protects against wear, and extends engine life—perfect for high-mileage vehicles seeking premium care.

## Description

Sponsored Ad - Engine Oil Additive by Mannol, Oil Treatment for Car Engine, Motor Engine Additive Tin, Motor Doctor 9990, 300ml

## Features

- MOTOR OIL ADDITIVE: Expect better restored oil pressure, reduced oil consumption and exhaust, and overall increased engine performance. Our Motor Doctor Oil Additive is a modern multifunctional additive in engine oil, a viscosity stabilizer designed to restore oil pressure and reduce its consumption in engines with high mileage.
- OIL STABILIZER: Mannol Motor Doctor is a viscosity stabilizer, designed to restore oil pressure and reduce its consumption in engines with high mileage. Use 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.
- ENGINE OIL TREATMENT: High quality features include a special modifier to increase the oil viscosity index, which prevents oil from entering the combustion chamber, which in turn reduces soot formation and eliminates exhaust gas smoke.
- PREMIUM CAR CARE: Our synthetic oil significantly extends engine life. The anti-wear components minimize wear on engines with any mileage and extend their service life. It is suitable for petrol and diesel engines and all types of engine oils (synthetic, mineral, etc.).
- MANNOL is proud to offer a wide wide variety of engine oils, gear oils, fuel additives, industrial oils, brake fluids, cooling fluids and car care. Our goal is to help you find the exact right product to fit your needs and have your vehicle running smoothly.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | mannol |
| Brand | MANNOL |
| Item Weight | 10.9 ounces |
| Product Dimensions | 2.95 x 2.95 x 3.74 inches |
| Country of Origin | Lithuania |
| Item model number | 4036021894119 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 4036021894119 |
| Special Features | suitable for petrol and diesel engines;, reduces soot formation;, eliminates exhaust gas smoke;, prevents oil from entering the combustion chamber; |

## Product Details

- **Brand:** MANNOL
- **Package Information:** Can
- **Liquid Volume:** 300 Milliliters
- **Item Weight:** 308 Grams
- **Item Form:** Liquid

## Images

![Engine Oil Additive by Mannol, Oil Treatment for Car Engine, Motor Engine Additive Tin, Motor Doctor 9990, 300ml - Image 1](https://m.media-amazon.com/images/I/81fM1y4O-WL.jpg)

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.fi/products/91563971-engine-oil-additive-by-mannol-oil-treatment-for-car-engine](https://www.desertcart.fi/products/91563971-engine-oil-additive-by-mannol-oil-treatment-for-car-engine)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-24*