---
product_id: 420213459
title: "Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber."
brand: "liqui moly"
price: "A$45"
currency: AUD
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.com.au/products/420213459-catalytic-system-clean-300-ml-7110-cleans-the-injection-system
store_origin: AU
region: Australia
---

# Improves fuel combustion efficiency Reduces CO2 emissions up to 2000 km 300 ml treats up to 70L fuel Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

**Brand:** liqui moly
**Price:** A$45
**Availability:** ✅ In Stock

## Summary

> ♻️ Drive cleaner, save green, and stay ahead of the pack!

## 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?** A$45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/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

- • **Eco-Friendly Drive:** Lowers CO2 emissions with every tank
- • **Fuel Efficiency Booster:** Optimizes combustion to save fuel and money
- • **Turbo & Cat-Converter Safe:** Tested and trusted for all gasoline engines
- • **Soot-Free Catalytic Converter:** Protects and unclogs for peak performance
- • **Injection & Combustion Chamber Cleaner:** Deep cleans fuel system for smoother rides

## Overview

Liqui Moly Catalytic System Clean 300 ml is a premium fuel additive designed to protect and clean your vehicle’s catalytic converter, injection system, and combustion chamber. Suitable for all gasoline engines with catalytic converters, it improves fuel combustion, reduces soot buildup, and lowers CO2 emissions. One 300 ml bottle treats up to 70 liters of fuel, with effects lasting up to 2,000 km, making it an essential preventative maintenance product for efficient, eco-conscious driving.

## 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 | #498 in Automotive ( See Top 100 in Automotive ) #4 in Fuel System Cleaners |
| Brand | Liqui Moly |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,870) |
| 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 |
| OEM Part Number | 21994 |
| Rim Diameter | 300 Millimeters |

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ It's worked. Very happy with product.
*by I***U on September 27, 2024*

I dont leave many reviews but it was such a shock it worked after trying so hard to dix this car that i wanted to let people know it work. 2008 750li bmw had code p0430. I tried a few methods to clear code but didnt work. Even tried the gal of paint laquer in the gas tank but no go. To apply the Moly, I used a vacuum line from the intake manifold to suck in the Moly. Tons of smoke from esxhaust, it ran poorly and caused it to stall during the 10 min of applying moly. I thought I ruined my engine it was knocking, sputtering, and lots of smoke. After 20min of easy driving the car came to life, drove better and p0430 code never came back. Know how fast and how much should go into the intake is the tricky thing to know. Each car is different so you needs to figure out your own way to apply the moly.

## 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 Australia*
*Store origin: AU*
*Last updated: 2026-02-10*