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Carbon build-up is a natural by-product of combustion and it can cause problems in vehicles, which can result in unnecessary downtime and worse performance. Cataclean can prevent this.


Added to the fuel tank, Cataclean does not alter the fuel composition, Cataclean is carried with the fuel through the fuel system, cleaning carbon build-up as it comes into contact with it. Cataclean’s cleaning formulation can clean everything the fuel comes into contact with including the fuel injectors, cylinder heads, intake valves and oxygen sensors. Upon combustion in the combustion chamber, Cataclean creates an acidic vapor containing carboxylic acids that continues through the system to clean carbon from the exhaust including the catalytic converter and DPF/PPF.


Ensuring the fuel and exhaust system is clean can produce benefits such as reduced emissions, restored performance, and improved fuel economy. A cleaner fuel and exhaust system can also prolong the life of vehicle components.

Liquid Science for the Life of Your Vehicle

Cataclean contains solvents that can break down deposits formed by oxidation and polymerization of hydrocarbon in fuel delivery systems. Cataclean also includes acetone which is known to improve the efficiency of fuel combustion. Acetone has been used in race cars to enhance octane rating and make fuel burn more evenly and completely. When Cataclean combusts, carboxylic acids, aldehydes, and active peroxy compounds are formed. These compounds in the exhaust vapors work to clean the surfaces inside the converter. The result is the removal of deposits from the surface of the core, which increases the catalyst's ability to remove harmful exhaust emissions such as carbon monoxide & nitrogen oxides. Cataclean does not alter fuel composition. Cataclean is safe for all petrol, diesel, and hybrid engines.

How Cataclean works in the Catalytic converter

Cataclean contains solvents that can break down deposits formed by oxidation and polymerization of hydrocarbon in fuel delivery systems. Cataclean also includes acetone which is known to improve the efficiency of fuel combustion. Acetone has been used in race cars to enhance octane rating and make fuel burn more evenly and completely. When Cataclean combusts, carboxylic acids, aldehydes, and active peroxy compounds are formed. These compounds in the exhaust vapors work to clean the surfaces inside the converter. The result is the removal of deposits from the surface of the core, which increases the catalyst's ability to remove harmful exhaust emissions such as carbon monoxide & nitrogen oxides. Cataclean does not alter fuel composition. Cataclean is safe for all petrol, diesel, and hybrid engines.

About CataClean

Cataclean produceS a range of "all in one" cleaning products for your engine, fuel, and exhaust system that can reduce a vehicle’s emissions by up to 60%. It can also restore performance and improve fuel economy and is widely recognized as a global market leader in the world of internal engine cleaning products. Our story started in 1995, when we developed and patented a range of convenient "pour and go" solutions for cleaning fuel and exhaust systems before, during, and after combustion, eliminating the need to pay for premium fuels at the pump. From protecting and maintaining the catalytic converter to de-clogging diesel particulate filters, Cataclean should be used every three months to help protect and clean your engine. ​Cataclean is available in petrol, diesel, and hybrid variants for car, van, and motorhome applications. We also have products for motorbikes, tools and garden machinery. We are a British company that exports to Europe, Asia, Africa, and the US, with our products, successfully tried and tested by a range of organizations worldwide, from the American Automobile Association and Metro Taxi in the United Arab Emirates (UAE) through to Lancashire Police and Veolia in the UK. Crucially, our products have also had many testimonials from industry experts and customers, including Car Mechanics and Professional Mechanics magazine. With over 6000 reviews on Amazon, the majority of which are five-star, and recommended by Halfords Autocentre, our products are carried on the RAC’s fleet of breakdown vehicles – an endorsement we are enormously proud of – and conform to strict EU legislation, providing peace of mind that they do not harm the environment.