Available in a variety of liquid, pellet, and powder forms, stop-leak products are designed to be poured into your radiator where they circulate with your coolant to seal leaks. Additionally ...

The company says its Liquid Aluminum Cooling System/Radiator Stop Leak has been formulated specifically to permanently seal the coolant leaks that cause most overheating problems; it now features ...

Do stop leak products really work ... If so, the water pump shaft seal is good. How about the radiator? Can you spot a dampness anywhere on the upper or lower tanks, maybe the vertical rods ...