Bar's Leaks 1196 Radiator Stop Leak Concentrate - 11 oz is the perfect solution for addressing minor leaks and drips in your cooling system. With its specially formulated design, it effectively stops leaks caused by normal wear and aging in radiators, gaskets, heater cores, and freeze plugs. Compatible with all types and colors of antifreeze coolant and/or water, this concentrate is versatile and easy to use. Simply add half a bottle for 4-cylinder engines or one bottle for every 4 gallons of capacity in larger systems. However, it's important to exercise caution when working with the cooling system, as opening it while the engine is hot or running may cause severe burns. Trust Bar's Leaks provides you with a reliable and efficient solution to keep your vehicle running smoothly and prevent costly repairs.