Senfineco 9942 Catalytic System Cleaner 300ml is a professional fuel additive developed to clean carbon and soot deposits from the catalytic and combustion system. Its active oxygen-rich formulation helps clean the catalytic converter, intake valves, combustion chambers, piston tops, cylinder head and injection/exhaust system. 

Regular use can help maintain catalytic converter efficiency, support cleaner combustion and keep the fuel and exhaust system free from excessive carbon deposits. Senfineco states that the product contains no harmful metal ions and can be used both preventively and when carbon-related performance issues occur. 

Key Benefits

• Helps remove carbon and soot deposits
• Cleans the catalytic converter and exhaust treatment system
• Helps clean intake valves and combustion chambers
• Supports catalytic converter performance
• Helps maintain smoother and more efficient engine operation
• No harmful metal ions
• Easy application directly through the fuel tank
• Suitable for petrol/gasoline engines according to Senfineco Germany 

How to Use
Pour the full 300ml bottle into the fuel tank and fill up to approximately 45 litres of fuel. Senfineco recommends driving the vehicle under increased engine load at over 4,000 RPM for approximately 15 minutes as part of the treatment. The manufacturer recommends preventive use around every 10,000 km/service interval.