WYNNS Wynn's Commercial Vehicle Cooling System Treatment and Stop Leak

Stops and prevents leaks in the cooling system Stops head gasket and water pump gasket leaks Formulated not to block cooling system radiator channels and temperature sensors Enhanced protection against rust and corrosion Will not harm rubber hoses, gaskets or other system components For all ‘water’ cooled systems of all engines Can be used as preventive agent Compatible with all antifreezes and coolants, including OAT coolants