Reply To: coolant in a 12

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Greg: Two things. 1) To clean out the grease and light hardness deposits from a radiator, fill it with freswh water and a cup of dishwahser detergent like Cascade. Drive the car for an hour or so and then drain and flush the system until the odor of the detergent can no longer be smelled. 2) Keep a filter in the upper radiator hose. This could be a Gano filter or as simple as a section of panty hose inserted in the inlet to the radiator, lapped over the outside of the inlet and secured by the upper radiator hose and clamp. This way if something does come loose in the block in won’t get into the radiator.