Purpose and Specifications

The LIQUI MOLY Catalytic-System Cleaner 300 ml is a premium gasoline fuel additive designed to protect your catalytic converter from soot clogging while cleaning intake valves and the combustion chamber. Add one 300 ml bottle to fuel tanks up to 70 liters for immediate benefits like smoother engine operation, better throttle response, lower fuel use, and reduced emissions. It works best during highway drives where exhaust heat exceeds 400°C to burn off deposits effectively. Effects last up to 2,000 km, keeping your engine running clean and efficient while preventing fuel system corrosion.

When to Use / Replace?

Use every 2,000 km or during oil changes as a preventative step, especially if you notice sluggish acceleration, higher fuel consumption, or emissions test issues. Ideal for all gasoline engines with catalytic converters. Repeat treatment every 10,000-20,000 km based on driving conditions. Shelf life is typically 3-5 years when stored cool and dry.

• Pour into 1/4 to 1/2 full tank, then refuel with up to 70 liters of gasoline.
• Spray version for direct intake application at 2,000-3,000 rpm if needed.
• Expect quieter engine and better economy after 1-2 tanks.

FAQ

Q: Can it fix a check engine light from catalytic issues?
A: It often clears soot-related codes and keeps the light off with regular use every 2,000 km, but won't remove manganese oxide deposits.

Q: Is it safe for turbocharged engines?
A: Yes, fully tested for turbochargers and catalytic converters in all gasoline engines.

Q: How soon do I see results?
A: Improvements in performance and emissions start after one full tank, peaking after highway driving.