• valvoline cooling system stop leak

Valvoline Cooling System Stop Leak is an instant sealant engineered to provide premium protection against leaks and sealing damage. Thanks to its high-quality leak sealing components, this product is highly effective and able to stop leakage immediately following its application. Moreover, it is designed to stop seal sweating and protect against losses caused by evaporation. Valvoline Cooling System Stop Leak is recommended for all types of cooling systems present in diesel and gasoline engines.

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