Generic Catalytic System Cleaner 300 ml – Fuel Additive for Catalytic Converters, Cleans Soot & Injectors

Liquii Moly Catalytic-System Cleaner 300 ml cleans soot from the catalytic converter, removes deposits in the injection system and combustion chamber, and helps restore more complete fuel combustion.

This concentrated fuel additive is formulated for gasoline engines equipped with a catalytic converter. One 300 ml bottle treats up to 70 liters of petrol and is intended as a preventative maintenance treatment: it disperses soot and carbon residues that can block the catalyst and foul injectors, supports cleaner combustion, and helps reduce excess fuel consumption associated with dirty components. The product is compatible with turbocharged engines and is simple to use — just add to the fuel tank and the cleaning effect works as fuel mixes during driving.

How does this cleaner protect the catalytic converter?

The formula targets soot and carbon particles that accumulate on the catalyst surface and in upstream components. By helping to dissolve and disperse these deposits, it reduces the risk of the converter becoming clogged and losing efficiency. This product is designed to work continuously with fuel flow for best results.

• Removes soot and carbon residues that can obstruct the catalyst.
• Helps maintain exhaust flow and conversion efficiency.
• Suitable for use with catalytic converters and turbochargers.

Will the cleaner improve fuel combustion and economy?

Yes — by cleaning injectors and the combustion chamber, the additive encourages a more complete burn of the fuel-air mixture. More efficient combustion typically reduces unburned hydrocarbons and can lower fuel consumption when combined with proper driving and maintenance. The manufacturer states the effect can last up to about 2,000 km after treatment.

• Clears injectors and combustion deposits for steadier spray patterns.
• Promotes improved ignition and reduced misfires from carbon build-up.
• Reported effect duration: approximately 2,000 km under normal use.

How do I use the 300 ml bottle in my petrol vehicle?

Using the bottle is straightforward: pour the 300 ml treatment into the fuel tank before filling up, or add to an existing tank — the product mixes automatically with the fuel during normal driving. One bottle treats up to 70 liters of petrol, so match dosage to your tank size and servicing interval. It's intended as a preventative measure rather than a repair for heavily damaged components.

• Dosage: 300 ml treats up to 70 liters of petrol.
• Can be added at any time; mixes automatically with fuel.
• Best used periodically as preventative maintenance, not as a guaranteed repair.

Is this suitable for my engine and turbocharged vehicles?

The formulation is compatible with all gasoline engines fitted with a catalytic converter and has been tested for use in turbocharged engines. It is intended to be safe for standard fuel system materials when used as directed. Always follow vehicle manufacturer recommendations and routine service intervals alongside additive use.

• Designed for gasoline engines with catalytic converters.
• Tested for turbocharger-equipped vehicles.
• Recommended as a preventative maintenance additive.

Who is this for? Liquii Moly Catalytic-System Cleaner 300 ml is aimed at drivers who want a simple preventive treatment to protect the catalytic converter and keep fuel system components cleaner between services. It's suited to owners of petrol cars, including turbocharged models, who prefer a quick add-on treatment to help maintain combustion efficiency and reduce soot-related issues. For severe catalyst damage or major injector faults, consult a professional repair service.