Wynns Cooling System Stop Leak as been developed by Wynns for use on all 'water cooled' petrol, diesel and LPG vehicles when a minor leak as been noticed in the cooling system, Cooling System Stop Leak may also be used as a preventation agent.

To use simply flush your cooling system first with Wynns Cooling System Flush, top up engines coolant levels, turn on the vehicle and set all heating controls to the hot position and pour the content into the cooling system.

The Cooling System Stop Leak will not harm any of your vehicles hoses or gaskets, is compatible with all coolants and antifreezes and will protect you cooling system from rust and corrosion.

325ml