Radiator Stop Leak is a safe and easy way to fix leaks in your vehicle’s cooling system. You add it to the coolant, and it flows to the leaks, sealing them quickly. As it moves through the system, the particles stick together in the hole until the leak is fully plugged.

This stops leak into the coolant system through the radiator cap. Drive the vehicle for a short time to allow the product to seal the leaks.
Use as a temporary solution for coolant system leaks. For best results, follow the manufacturer’s instructions on the antifreeze type.
This stops leak into the coolant system through the radiator cap. Drive the vehicle for a short time to allow the product to seal the leaks.
Use as a temporary solution for coolant system leaks. For best results, follow the manufacturer’s instructions on the antifreeze type.
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