---
product_id: 689552563
title: "Mannol 9990 Motor Doctor Piston Ring and Engine Oil Additive - 350 ml"
brand: "mannol"
price: "₨2608"
currency: LKR
in_stock: true
reviews_count: 6
category: "Mannol"
url: https://www.desertcart.lk/products/689552563-mannol-9990-motor-doctor-piston-ring-and-engine-oil-additive
store_origin: LK
region: Sri Lanka
---

# Reduces engine smoke by 40% Boosts oil pressure +15% Extends engine life up to 30% Mannol 9990 Motor Doctor Piston Ring and Engine Oil Additive - 350 ml

**Brand:** mannol
**Price:** ₨2608
**Availability:** ✅ In Stock

## Summary

> 🛠️ Unlock your engine’s hidden potential—drive smarter, not harder!

## Quick Answers

- **What is this?** Mannol 9990 Motor Doctor Piston Ring and Engine Oil Additive - 350 ml by mannol
- **How much does it cost?** ₨2608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/689552563-mannol-9990-motor-doctor-piston-ring-and-engine-oil-additive)

## 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

- • **Engine Armor:** Forms a durable lubricant film that protects engine parts, ensuring peak performance under stress.
- • **Revive & Thrive:** Restores worn engines by increasing oil pressure and cutting oil consumption, saving you costly repairs.
- • **Smoke-Free Drive:** Prevents oil leakage into combustion chambers, slashing soot and engine smoke for a cleaner ride.
- • **Cold Start Champion:** Guarantees smooth, problem-free cold starts even in harsh conditions—never miss a beat.
- • **Universal Compatibility:** Expertly formulated to blend seamlessly with both synthetic and mineral oils for versatile use.

## Overview

Mannol 9990 Motor Doctor is a premium 350 ml synthetic oil additive designed to boost oil pressure, reduce oil consumption, and prevent engine smoke in both worn and new engines. It forms a protective lubricant film that enhances engine durability, ensures flawless operation under tough conditions, and supports smooth cold starts. Compatible with synthetic and mineral oils, this German-engineered formula is a top-rated solution for prolonging engine life and optimizing performance.

## Description

Increases oil pressure and decreases oil consumption in worn out engines.

Review: Love it - I love the product but agin and agin
Review: Giusto il prezzo - Fa il suo dovere. Su un motore marino datato

## Features

- Increases oil pressure and decreases oil consumption in worn out engines.
- Prevents oil from getting into the combustion chamber and opposes the formation of soot and engine smoke.
- Prolongs new engine's life and forms a reliable lubricant film on the engine parts.
- Ensures flawless engine functionality under hard conditions and guarantees problem-free cold starts.
- Suitably mixed with synthetic and mineral oils.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ZPO6UFK |
| Best Sellers Rank | #4,240 in Automotive ( See Top 100 in Automotive ) #43 in Oil & Fluid Additives |
| Brand | MANNOL |
| Brand Name | MANNOL |
| Container Type | Can |
| Country of Origin | Germany |
| Customer Reviews | 4.6 out of 5 stars 268 Reviews |
| Item Form | Oil |
| Item Weight | 308 Grams |
| Item weight | 308 Grams |
| Liquid Volume | 300 Milliliters |
| Liquid volume | 300 Milliliters |
| Manufacturer | Mannol |
| Material | Synthetic |
| Model Number | MN9990-030ME |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package information | Can |
| Part Number | MN9990-030ME |
| Recommended Uses For Product | Internal Combustion Engines |
| Recommended uses for product | Internal Combustion Engines |
| SAE J300 Viscosity Grade | 5W-30 |
| Specific Uses For Product | Suitable for Worn Out and New Engines |
| Unit Count | 350 Milliliters |
| Viscosity | 5w-30 |

## Product Details

- **Brand:** MANNOL
- **Item weight:** 308 Grams
- **Liquid volume:** 300 Milliliters
- **Material:** Synthetic
- **Package information:** Can

## Images

![Mannol 9990 Motor Doctor Piston Ring and Engine Oil Additive - 350 ml - Image 1](https://m.media-amazon.com/images/I/81fM1y4O-WL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it
*by G***M on 15 August 2026*

I love the product but agin and agin

### ⭐⭐⭐⭐⭐ Giusto il prezzo
*by N***O on 9 August 2026*

Fa il suo dovere. Su un motore marino datato

### ⭐⭐⭐⭐⭐ Un gran aditivo
*by D***L on 21 April 2026*

Buen aditivo ..servicio de entrega muy rápido

## 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.lk/products/689552563-mannol-9990-motor-doctor-piston-ring-and-engine-oil-additive](https://www.desertcart.lk/products/689552563-mannol-9990-motor-doctor-piston-ring-and-engine-oil-additive)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-09-30*