Bar’s Leaks Cooling System Repair, No. 1150, not only stops engine coolant leaks and antifreeze loss, but also protects against overheating and future breakdowns. Its two formulas come packaged in a unique dual-cavity bottle, providing one easy-to-use, low-cost solution. One side of the bottle includes a blend of carbon fiber sealer, leak-sealing liquid and stop leak treatment to stop and prevent coolant loss. The other side adds long-term protection in the form of water pump lubricant, corrosion inhibitors and heat transfer agents. Cooling System Repair also includes Xtreme Cool, a proprietary wetting agent that reduces water temperature to prevent overheating. To treat a cooling system, simply pour the bottle’s entire contents into the vehicle radiator and idle the engine for 15 minutes. Most leaks stop instantly. Cooling System Repair works in all gasoline, diesel and turbocharged engines.