BlueDevil is now available in a 16 oz pour-n-go size! Permanent repair for leaking head gaskets in both gas and diesel engines. Pour-n-go is designed for your customer who has limited time or is not a serious mechanic. Formulated for smaller engines, no flush or thermostat removal is required. If the radiator or overflow tank is full, drain down the anti-freeze to allow enough space for BlueDevil. Start engine while cold and then turn the heater on max. Slowly pour BlueDevil into the radiator and replace cap. Let idle for 50 minutes at normal operating temperature. Easy to use and provides your customer with a permanent repair!