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Catalytic System Cleaner 300ml
Petrol fuel additive intended to help keep catalytic-converter and combustion-system deposits under control while cleaning intake valves and combustion areas.
Including GST · SKU 8931
Available to order
PSM Workshop collection — Free
Collect from PSM Workshop, Ellerslie.
Nationwide courier — $19.99
Charged once per order, chosen at checkout.
Always follow the product label and vehicle manufacturer's requirements. If you are unsure whether this product is suitable for your vehicle, contact PSM Workshop before use.
- Genuine Liqui Moly
- Free PSM collection
- $19.99 nationwide courier
- Available to order
Product overview
Catalytic System Cleaner is a petrol fuel-tank additive formulated to help protect the catalytic converter from clogging caused by soot build-up, while also cleaning deposits from intake valves and the combustion chamber. Soot and combustion deposits that accumulate over time can reduce a catalytic converter's efficiency and affect how completely fuel is burned.
By improving fuel combustion and reducing the corrosion-causing residues left in the fuel system, the treatment supports lower fuel consumption and CO2 emissions from a cleaner-running engine. It is intended specifically for petrol engines fitted with a catalytic converter.
Key benefits
- Helps protect the catalytic converter from clogging with soot
- Cleans intake valves and the combustion chamber
- Improves fuel combustion
- Prevents corrosion in the fuel system
- Clean engines can reduce fuel consumption and CO2 emissions
Suitable for
- Petrol (gasoline) engines fitted with a catalytic converter
Application
Add to the fuel tank in line with the dosage on the product label.
Also shopping for an oil change? Browse Liqui Moly engine oils.
Related additives
Not sure if this is right for your vehicle?
Ask PSM Workshop before you order — we'll confirm whether this product suits your make, model and engine.



