Radiator Flush Radiator Flush is a detergent and converter mixture built to remove limescale and contaminants in the cooling system. Restores the original cooling performance, guarantees smooth operation of thermostat and regulating mechanisms. Reduces engine failure risk, fuel consumption and wear. Compatible with all anti-freezes and coolants . Does not contain any aggressive acids, is neutral towards metal, rubber and plastic. Restores the original cooling performance of the cooling system Eliminates risk of overheating Prevents undesired reactions due to coolant change No disassembly of the cooling system required Neutral towards rubber hoses, seals and all metals in the cooling system Removes contaminants, clogging and corrosion Compatible with all anti-freezes and coolants , including OAT coolant