Coolant is cooled in the radiator. The radiator consists of long, thin channels through which the coolant flows. Outside air, which flows along the channels, cools the liquid. Over time, parts in the cooling system start to oxidise and the cooling system can clog and leak. JLM radiator service products clean, maintain and protect the cooling system. In case of small leaks, JLM can temporarily repair the cooling system until final repair is carried out.