---
product_id: 420213459
title: "Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber."
brand: "liqui moly"
price: "€ 38.78"
currency: EUR
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.es/products/420213459-catalytic-system-clean-300-ml-7110-cleans-the-injection-system
store_origin: ES
region: Spain
---

# Cleans fuel injection & combustion Reduces CO2 emissions Protects catalytic converter Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

**Brand:** liqui moly
**Price:** € 38.78
**Availability:** ✅ In Stock

## Summary

> 🛠️ Clean fuel, clean ride, cleaner planet — drive smarter, not harder!

## Quick Answers

- **What is this?** Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber. by liqui moly
- **How much does it cost?** € 38.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/420213459-catalytic-system-clean-300-ml-7110-cleans-the-injection-system)

## 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

- • **Long-Lasting Effect:** One 300 ml dose treats up to 70L of fuel and lasts for 2,000 km—effortless maintenance with lasting impact.
- • **Turbo & Cat-Converter Safe:** Tested and trusted for all gasoline engines with catalytic converters, including turbocharged models.
- • **Eco-Friendly Fuel Efficiency:** Cleaner engines mean lower fuel consumption and reduced carbon footprint.
- • **Soot-Free Catalytic Protection:** Prevents clogging to keep your converter running smooth and efficient.
- • **Precision Injection & Chamber Cleaner:** Restores peak fuel combustion for optimized engine performance.

## Overview

Liqui Moly Catalytic System Clean 300 ml is a premium fuel additive designed to clean the injection system and combustion chamber, protect the catalytic converter from soot buildup, and improve fuel combustion. Suitable for all gasoline engines with catalytic converters, including turbocharged models, it reduces fuel consumption and CO2 emissions. One bottle treats up to 70 liters of fuel and its effects last up to 2,000 km, making it an essential preventative maintenance product for professional drivers seeking efficiency and engine longevity.

## Description

Protects the catalytic converter from clogging with soot. Cleans the injection system and the combustion chamber. Improves the combustion of the fuel. Clean engines reduce fuel consumption and therefore CO2 emissions. Prevents corrosion in the fuel system. Tested for use with turbochargers and catalytic converters. Suitable for all gasoline engines with a catalytic converter. Particularly as a preventative measure. 300 ml is sufficient for up to 70 liters of fuel. Effect remains for up to 2,000 km. Add to the fuel as a preventative measure. 300 ml is sufficient for up to 70 liters of fuel. Can be added at any time because mixing takes place automatically. Effect remains for up to 2,000 km. Catalytic Converter Cleaner 7110 Liqui Moly Catalytic-System Cleaner 300 ml.

Review: Good stuff - Works really really well in my 2019 Subaru ascent.
Review: 21 year OEM factory O2sensor is alive again ! - No snake oil here this product is the real deal. I was very skeptical when my 2005 Honda CR-V started throwing the dreaded P0420 code. For about six months, I kept resetting the check engine light, only to have it come back every time. After reading the reviews, I decided to give this product a try. To be clear, it wasn’t an instant fix. I used the entire bottle and ran 93-octane premium fuel as reviews directed. It took about two to three full tank refills before I noticed the difference but eventually the P0420 code disappeared and hasn’t returned. If you’re expecting overnight results, this probably isn’t for you. In my experience, it takes some time to work, but it was well worth the patience.

## Features

- Protects the catalytic converter from clogging with soot.
- Cleans the injection system and the combustion chamber.
- Improves the combustion of the fuel.
- Clean engines reduce fuel consumption and therefore CO2 emissions.
- Suitable for all gasoline engines with a catalytic converter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z54MBQ3 |
| Best Sellers Rank | #818 in Automotive ( See Top 100 in Automotive ) #6 in Fuel System Cleaners |
| Brand | Liqui Moly |
| Brand Name | Liqui Moly |
| Customer Reviews | 4.4 out of 5 stars 3,966 Reviews |
| Item Form | Liquid |
| Item Volume | 300 ml |
| Item Weight | 0.3 kg |
| Manufacturer | Liqui Moly |
| Material Feature | Non-Toxic |
| Material Features | Non-Toxic |
| Model Number | 7110 |
| Number of Items | 1 |
| Part Number | 7110 |
| Scent | Basil |
| Size | 10.14 Fl Oz (Pack of 1) |
| Specific Uses For Product | Automotive motor additive |
| Unit Count | 10.14 Fluid Ounces |

## Product Details

- **Brand:** Liqui Moly
- **Item Form:** Liquid
- **Material Feature:** Non-Toxic
- **Scent:** Basil
- **Specific Uses For Product:** Automotive motor additive

## Images

![Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber. - Image 1](https://m.media-amazon.com/images/I/61oxIpq0DWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good stuff
*by G***N on August 11, 2026*

Works really really well in my 2019 Subaru ascent.

### ⭐⭐⭐⭐⭐ 21 year OEM factory O2sensor is alive again !
*by P***A on July 11, 2026*

No snake oil here this product is the real deal. I was very skeptical when my 2005 Honda CR-V started throwing the dreaded P0420 code. For about six months, I kept resetting the check engine light, only to have it come back every time. After reading the reviews, I decided to give this product a try. To be clear, it wasn’t an instant fix. I used the entire bottle and ran 93-octane premium fuel as reviews directed. It took about two to three full tank refills before I noticed the difference but eventually the P0420 code disappeared and hasn’t returned. If you’re expecting overnight results, this probably isn’t for you. In my experience, it takes some time to work, but it was well worth the patience.

### ⭐⭐⭐⭐⭐ Worked darn fast to clear P0420
*by K***A on August 20, 2026*

I did the mistake of not checking oil and fluid levels regularly and my 2016 CRV had apparently gone almost dry on oil, the coolant was gone and the car had become sluggish and I got used to it without realizing. Thankfully got oil replenished, refilled coolant and all that but as the car groaned back to life slowly, the check engine light kept coming up with P0420 code. Figured I will give this a try after a google search recommended Cataclean, which is priced higher. Known about this brand, so ordered it, got fast and added to the gas tank. A trip on the freeway i managed to hit 80mph, something that wasn't possible a while ago without the car shuddering. When I restarted to return, the code had gone, no engine light. This is within the first 100 miles. The car is getting better at response. I think I will add another bottle after a few refuelling, presuming that it washed away the gumming, helping with smooth engine performance.

## Frequently Bought Together

- Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.
- Liqui Moly 2007 Jectron Gasoline Fuel Injection Cleaner - 300 ml , blue , 10.14 Fl Oz (Pack of 1 )
- Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU: 2009

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-08-26*