---
product_id: 420213459
title: "Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber."
brand: "liqui moly"
price: "€ 35.53"
currency: EUR
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.de/products/420213459-liqui-moly-catalytic-system-clean-300-ml-7110-cleans-injection
store_origin: DE
region: Germany
---

# Cleans up to 70L fuel Reduces CO2 emissions Protects catalytic converter Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

**Brand:** liqui moly
**Price:** € 35.53
**Availability:** ✅ In Stock

## Summary

> 🛠️ Clean fuel, clear conscience, and a smoother drive—don’t get left behind!

## Quick Answers

- **What is this?** Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber. by liqui moly
- **How much does it cost?** € 35.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/420213459-liqui-moly-catalytic-system-clean-300-ml-7110-cleans-injection)

## 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

- • **Eco-Friendly Drive:** Lowers fuel consumption and cuts CO2 emissions—drive green, save green
- • **Soot-Busting Power:** Prevents catalytic converter clogging for smoother rides
- • **Turbo & Cat Tested:** Safe for turbocharged engines and catalytic converters—performance without compromise
- • **Long-Lasting Effect:** One 300 ml dose treats up to 70L fuel, lasting up to 2,000 km of cleaner combustion
- • **Fuel Injection Revival:** Deep cleans injection system & combustion chamber for peak efficiency

## Overview

Liqui Moly Catalytic System Clean 300 ml is a premium fuel additive designed to protect and clean your gasoline engine’s catalytic converter, injection system, and combustion chamber. Suitable for all gasoline engines with catalytic converters, it prevents soot buildup, reduces fuel consumption and CO2 emissions, and maintains engine performance for up to 2,000 km per treatment. Tested safe for turbocharged engines, this 300 ml bottle treats up to 70 liters of fuel, making it an essential preventative maintenance product for modern drivers.

## 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: PASSED MY INSPECTION! THIS PRODUCT WORKS LIKE A MIRACLE DONT HESITATE TO BUY IT! - Inspection on my car due the end of January! My check engine light was coming on so I checked with a code reader & found it was a P0420. Read about the Catalytic Converter System possibly being in need of replacement or perhaps clogged. I am a woman, and know next to ZERO about cars, but I can read. Did investigate and found that the replacement of a Catalytic Converter system is mad expensive- also found this Moly Cleaner to add to gas tank. I'm not going to lie; I was nervous as I have a Kia Rio 2014 that has a very small gas tank and gets great gas mileage. In reading the consensus seemed to be to add to 1/4 tank of gas and drive fast for good periods of time to blow out the clog (if it was a clog). Did I mention I live in NYC and driving for long periods of time at high speeds can be a problem because of terrible traffic. Anyhow, this Saturday I poured the can into my 1/2 filled tank and hit a parkway near my home early morning. I did drive for 45 miles sometimes at 80mph then 60mph but tried to do it for a good few minutes at a time without getting pulled over. Checked my reader again, and it was not quite ready but the engine light did stay off. Next day, drove to work, stuck in traffic somewhat & never made it over 20mph & checked my reader again- all good to go for inspection. Went last night- my car PASSED and got that sticker in my window- so I am good for another year. The BEST money I have spent all year. Thank you for carrying this product! Saved me thousands! DONT HESITATE TO USE THIS. The hardest part for me was removing the cap on the can!
Review: Actually worked! - This stuff actually worked! We put it in our 2014 Silverado 1500 with 200k + miles. It took about 2 weeks of driving though. Probably 2 tanks of gas. Check engine light went out. We had a catalyst code for a month or so before using this stuff.

## 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 | #847 in Automotive ( See Top 100 in Automotive ) #5 in Fuel System Cleaners |
| Brand | Liqui Moly |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,784) |
| Date First Available | March 10, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.6 ounces |
| Item model number | 7110 |
| Manufacturer | Liqui Moly |
| Manufacturer Part Number | 7110 |
| Rim Diameter | 300 Millimeters |

## Images

![Liqui Moly 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

### ⭐⭐⭐⭐⭐ PASSED MY INSPECTION! THIS PRODUCT WORKS LIKE A MIRACLE DONT HESITATE TO BUY IT!
*by M***G on January 13, 2026*

Inspection on my car due the end of January! My check engine light was coming on so I checked with a code reader & found it was a P0420. Read about the Catalytic Converter System possibly being in need of replacement or perhaps clogged. I am a woman, and know next to ZERO about cars, but I can read. Did investigate and found that the replacement of a Catalytic Converter system is mad expensive- also found this Moly Cleaner to add to gas tank. I'm not going to lie; I was nervous as I have a Kia Rio 2014 that has a very small gas tank and gets great gas mileage. In reading the consensus seemed to be to add to 1/4 tank of gas and drive fast for good periods of time to blow out the clog (if it was a clog). Did I mention I live in NYC and driving for long periods of time at high speeds can be a problem because of terrible traffic. Anyhow, this Saturday I poured the can into my 1/2 filled tank and hit a parkway near my home early morning. I did drive for 45 miles sometimes at 80mph then 60mph but tried to do it for a good few minutes at a time without getting pulled over. Checked my reader again, and it was not quite ready but the engine light did stay off. Next day, drove to work, stuck in traffic somewhat & never made it over 20mph & checked my reader again- all good to go for inspection. Went last night- my car PASSED and got that sticker in my window- so I am good for another year. The BEST money I have spent all year. Thank you for carrying this product! Saved me thousands! DONT HESITATE TO USE THIS. The hardest part for me was removing the cap on the can!

### ⭐⭐⭐⭐⭐ Actually worked!
*by D***R on January 18, 2026*

This stuff actually worked! We put it in our 2014 Silverado 1500 with 200k + miles. It took about 2 weeks of driving though. Probably 2 tanks of gas. Check engine light went out. We had a catalyst code for a month or so before using this stuff.

### ⭐⭐⭐⭐⭐ passed my inspection
*by E***R on June 22, 2025*

Was able to past my inspection, had an error on CAT, one bottle worked. Been driving 55mph trying to hold for 3 mins for about a week and it still did not work, put this in to my tank tried again and passed. Comes in a durable can and the attachment is a huge plus since my car had a capless fuel opening, this was able to bypass the clamps to open out my fuel intake. Very simple to use, but be careful this stuff is not safe to smell very strong fumes. Good value for the money.

## 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 Germany*
*Store origin: DE*
*Last updated: 2026-01-31*