Cooling system leakage may develop as a result of the following: 1) loose cylinder head or other gasketed joints; 2) loose hose clamps; 3) fracture of radiator seams and joints; 4) corrosion perforation of radiator tubes or other thin walls of the system; 5) deterioration of hoses or gaskets; and 6) corrosion of metal joints. Since leaks have a tendency to get worse rather than better, the best way to assure permanent correction is through mechanical servicing or replacement of leaking parts.