Bar’s Leaks Cooling System Repair has twice the cooling system repair performance of other products by not only stopping cooling system leaks, but also adding future protection. It’s scientifically formulated to stop coolant leaks, thereby reducing antifreeze loss, while correcting other cooling system problems and helping to prevent costly repairs and breakdowns. In addition, Cooling System Repair contains Xtreme Cool™, which stops overheating and reduces water temperature.