Gonzo89 left review about K-Seal

No need to drain the system or worry about what type of antifreeze is in the cooling system; just shake, pour and get back on the road! K-Seal is a one-step permanent multi-purpose system for coolant leak repair with over 6 million bottles being sold worldwide to date. It permanently repairs leaks in the head gasket, block, radiator, heater core, freeze plug and water pump casing. Trusted by professional mechanics, technicians and motorists alike, K-Seal is suitable for use with all water cooled engines including cars, motorbikes, commercial vehicles and heavy machinery.