To increase performance, first replace the old coolant with water, and then add this cleaner. Shake the bottle well and add Radiator Clean to the cooling system via the expansion tank (if part of the system circuit) or directly into the radiator when a single hose overflow tank is fitted. Warm up the engine with the heater control set to the HOT position. Let the engine run idle for 10 minutes with the heater still in the HOT position. Stop the engine and allow Radiator Clean to cool. Open the drain valve and empty the system. With the system still open, flush Radiator Clean with water until the water runs clear, then close the system and refill Radiator Clean with coolant. One bottle of Radiator Clean of 300ml is sufficient for cooling systems with capacities ranging from 5 to 12 liters.

Yes, this cleaner is safe for rubber hoses, seals, and all metals within the cooling system. It can also be effectively used in closed-circuit cooling systems without causing harm to any components.

This cleaner is highly compatible with all types of coolants, including organic acid technology (OAT) coolants. It is especially effective for older cooling systems that require cleansing.

This product is specifically developed to clean all automotive cooling systems. It works as a powerful acid-free radiator cleaner with a dual purpose: first, Radiator Clean removes scale, and second, Radiator Clean eliminates rust, deposits, and oily residues from the cooling system.