Bar's Leaks has reformulated its popular Liquid Aluminum Radiator Stop Leak to stop leaks for the entire cooling system.
New Bar's Leaks Liquid Aluminum Cooling System/Radiator Stop Leak has been specifically formulated to permanently seal the coolant leaks that cause most overheating problems. It now features the proprietary wetting agent Xtreme Cool®. Xtreme Cool reduces the surface tension of coolant - which increases its wetting ability - as well as improves heat transfer and reduces coolant temperature.

Bar's Leaks Liquid Aluminum can be used in trucks, vans and buses. It is compatible with all types of antifreeze, including conventional green or blue (silicate-based) and extended life red/orange or yellow (OAT/HOAT) variants. It is added directly to the vehicle's cooling system. No flushing is required.
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