BlueDevil Radiator Flush & Oil Degreaserworks hard on your cooling system to restore efficiency to keep your vehicle operating at peak levels. This high performance coolant flush works well in all vehicles, especially those with in need of a deep cleaning. Flushing your cooling system with BlueDevil Radiator Flush & Oil Degreaser will not only keep your system free of buildup, it also works as an oil degreaser and removes rust that has potentially built up in your system.