Liqui Moly Catalytic System Clean fuel additive 300 ml — cleans injection, protects catalytic converter

Liqui Moly Catalytic System Clean 300 ml (7110) is a fuel-additive treatment that cleans the injection system, combustion chamber, and helps protect the catalytic converter from soot buildup.

Designed for petrol engines fitted with catalytic converters, this 300 ml bottle mixes directly with fuel to deliver active cleaners throughout the injection and combustion systems. It’s formulated for routine preventive maintenance: one bottle treats up to 70 liters of fuel, the mixing is automatic while driving, and the cleaning effect typically lasts up to about 2,000 km. The product is compatible with turbocharged engines and is intended to reduce deposits that impair combustion efficiency.

How does it help my catalytic converter and engine performance?

By dissolving soot and carbon deposits in the combustion chamber and fuel injection components, the additive reduces the risk of catalytic converter blockage and improves the burn quality of the fuel-air mixture. Cleaner combustion reduces soot production and helps the converter maintain its flow and efficiency.

• Removes carbon and soot that can clog the catalyst
• Promotes more complete fuel combustion
• Helps maintain exhaust flow and emission control performance

When and how should I use this 300 ml bottle?

Add the 300 ml bottle directly to the petrol tank before refueling or into the tank so it mixes with fuel; no special procedure is required. One bottle treats up to 70 liters of fuel and is suitable as a preventive measure during regular service intervals or before long trips.

• Use before refueling or pour into the tank—mixing happens while driving
• One bottle treats up to 70 liters of petrol
• Recommended for periodic preventive use rather than one-off emergencies

Is this safe for turbocharged engines and catalytic converters?

Yes — the formula is tested for compatibility with turbochargers and catalytic converters in gasoline engines. It is intended to help prevent corrosion in fuel system components while avoiding harm to exhaust after-treatment equipment when used as directed.

• Tested and suitable for turbocharged petrol engines
• Formulated to be safe for catalytic converters when used correctly
• Helps prevent corrosion within the fuel system

What practical benefits can I expect after use?

Regular use can lower deposit buildup, assist in restoring smoother idling and throttle response, and potentially reduce fuel consumption by improving combustion efficiency. Results vary with vehicle condition and driving patterns, and the cleaning effect is generally reported to last up to circa 2,000 km.

• Reduced deposit-related roughness and misfires
• Possible improvement in fuel economy through cleaner combustion
• Temporary effect lasting around 2,000 km depending on conditions

Who is this for: Liqui Moly Catalytic System Clean 300 ml is aimed at owners and technicians of gasoline vehicles equipped with catalytic converters who want a preventive, user-friendly treatment to reduce soot and carbon deposits. It’s suitable for everyday drivers, vehicles with turbochargers, and anyone looking to maintain combustion efficiency and help avoid catalytic converter clogging between service intervals.