Liqui Moly Radiator Cleaner effectively removes oil and lime deposits from coolant and heating systems in water-cooled engines, preventing blockages and ensuring optimal heat exchange. Safe for use with all standard coolant additives and antifreezes (except low conductivity types), this 300 ml formula treats up to 10 liters of coolant. Simply add to the system, run the engine for 10–30 minutes, then flush and refill as per manufacturer guidelines.