---
product_id: 48193115
title: "LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591"
brand: "liqui moly"
price: "€ 23.13"
currency: EUR
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.gr/products/48193115-liqui-moly-oil-additive-300-ml-oil-additive-sku-2591
store_origin: GR
region: Greece
---

# Extends engine life with advanced molybdenum sulfide Quieter engine operation for smoother rides Reduces engine friction by up to 30% LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591

**Brand:** liqui moly
**Price:** € 23.13
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive smoother, last longer — the pro’s secret weapon!

## Quick Answers

- **What is this?** LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591 by liqui moly
- **How much does it cost?** € 23.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/48193115-liqui-moly-oil-additive-300-ml-oil-additive-sku-2591)

## Best For

- liqui moly enthusiasts

## Why This Product

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

## Key Features

- • **Performance Boost:** Enhances engine smoothness and responsiveness for a premium driving feel.
- • **Versatile Compatibility:** Perfect for everyday cars, high-performance tuning, and vintage classics alike.
- • **Optimal Size & Efficiency:** 300 ml bottle treats multiple engines without waste—smart and sustainable.
- • **Professional Grade Formula:** Trusted by workshops and tuning pros for consistent, reliable results.
- • **Ultimate Engine Protection:** Shields bearings and moving parts from wear, boosting longevity.

## Overview

LIQUI MOLY Oil Additive (300 ml) is a professional-grade engine additive designed to reduce friction, protect engine components, and enhance performance across a wide range of vehicles. Featuring molybdenum sulfide, it ensures quieter operation and extends engine life, making it a must-have for tuning experts, workshops, and car enthusiasts seeking reliable, long-term engine care.

## Description

Oil additive

Review: “Essential for My Tuning Business – Smooth, Reliable, and Professional!” - I’ve been using LIQUI MOLY Oil Additive 300 ml in my car tuning and workshop business for months now, and it’s genuinely impressive. I’ve tested it on a wide variety of engines — from everyday vehicles to high-performance tuning projects — and it consistently delivers excellent results. The additive improves engine smoothness, reduces friction, and helps keep even older engines running efficiently. I’ve noticed quieter operation and more responsive performance after use, which gives me confidence when returning tuned or serviced vehicles to my customers. I’ve tried other oil additives before, but none match the quality, reliability, and consistency of LIQUI MOLY. It’s perfect for professional use, and the 300 ml size is ideal for treating multiple engines without waste. For anyone running a tuning, repair, or automotive workshop, this additive is a must-have. It’s a small investment for real improvements in engine performance and longevity. Highly recommend!
Review: LIQUI MOLLY, THE BEST ENGINE OIL ADDITIVE. - This is truly brilliant additive for almost all engine oil additives. It almost stops wear within the engine. I have used this molibdium sulfide in all my cars for the last 50 years & I run my vehicles hard & long. I do not wait for the engine to warm in any weather, I just go out get in, start & drive. Because Liqui Moly protects the engine bearings, sleeves & all moving parts, from the onset. Also you can buy a Gearbox, rear axle (final Drive) & some cars Turret Top oil additive too. But always check as some gearboxes require thicker oils . But if you can use Liqui Molly you be a fool not to. Old classics & vintage cars too. Please note, Any Engine Oil company will never agree to using an additive, or they be liable for selling an inferior oil.

## Features

- Item Package Length: 5.5cm
- Item Package Width: 5.5cm
- Item Package Height: 18.5cm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0096Y6SX4 |
| Best Sellers Rank | 267 in Automotive ( See Top 100 in Automotive ) 7 in Greases & Lubricants 10 in Car Engine Oils |
| Brand | Liqui Moly |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,822) |
| Date First Available | 16 Dec. 2014 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 300 g |
| Item model number | 2591 |
| Manufacturer | LIQUI MOLY |
| Manufacturer part number | 2591 |
| Model | 4100420025914 |
| Product Dimensions | 12 x 6 x 6 cm; 300 g |

## Product Details

- **Brand:** Liqui Moly
- **Flash point:** 201 Degrees Celsius
- **Liquid volume:** 300 Millilitres
- **Package information:** Bottle
- **Vehicle service type:** Car

## Images

![LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591 - Image 1](https://m.media-amazon.com/images/I/81RtBHmEAPL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Hi, It seems like that oil additive goes into engine oil? true?**
A: Hi, Yes, make sure the can/bottle has been warmed up in this cold weather, and give it a good shaking for a couple of minutes to thoroughly mix it, pour most of it in then stand the container on end in the cam cover for a few minutes to get it all out of the container.
Rick,
Gainsborough.

**Q: some seller says that is not suitable for engine with wet clutch but only vehicle with separate gearbox; I have Honda SH300 can i use it?**
A: I’ve heard not to use with a wet clutch as well! If you’re unsure the answer should always be No! 

Best Mike

**Q: I have a two 6bta cummins that take 14liters of engine oil each. how many cans per engine?**
A: I would add two 300ml of additive.

**Q: How much do I need for a 2005 6.6 duramax?**
A: The vehicle takes 9.5 litres of oil so I would use two bottles

## Customer Reviews

### ⭐⭐⭐⭐⭐ “Essential for My Tuning Business – Smooth, Reliable, and Professional!”
*by T***D on 7 December 2025*

I’ve been using LIQUI MOLY Oil Additive 300 ml in my car tuning and workshop business for months now, and it’s genuinely impressive. I’ve tested it on a wide variety of engines — from everyday vehicles to high-performance tuning projects — and it consistently delivers excellent results. The additive improves engine smoothness, reduces friction, and helps keep even older engines running efficiently. I’ve noticed quieter operation and more responsive performance after use, which gives me confidence when returning tuned or serviced vehicles to my customers. I’ve tried other oil additives before, but none match the quality, reliability, and consistency of LIQUI MOLY. It’s perfect for professional use, and the 300 ml size is ideal for treating multiple engines without waste. For anyone running a tuning, repair, or automotive workshop, this additive is a must-have. It’s a small investment for real improvements in engine performance and longevity. Highly recommend!

### ⭐⭐⭐⭐⭐ LIQUI MOLLY, THE BEST ENGINE OIL ADDITIVE.
*by K***I on 26 November 2025*

This is truly brilliant additive for almost all engine oil additives. It almost stops wear within the engine. I have used this molibdium sulfide in all my cars for the last 50 years & I run my vehicles hard & long. I do not wait for the engine to warm in any weather, I just go out get in, start & drive. Because Liqui Moly protects the engine bearings, sleeves & all moving parts, from the onset. Also you can buy a Gearbox, rear axle (final Drive) & some cars Turret Top oil additive too. But always check as some gearboxes require thicker oils . But if you can use Liqui Molly you be a fool not to. Old classics & vintage cars too. Please note, Any Engine Oil company will never agree to using an additive, or they be liable for selling an inferior oil.

### ⭐⭐⭐⭐⭐ Good product
*by J***N on 6 January 2026*

Realy good stuff,made my engine produce less noise,good product

## Frequently Bought Together

- LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
- LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427
- Liqui Moly 2770 - Engine Oil Additive

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-10*