BlueDevil Radiator Flush restores efficiency to vehicles by helping remove grease, rust, grime or any other buildup that occurs during normal vehicle use. The company's specially-formulated coolant flush is designed to work well in all vehicles, especially those with high mileage warranting a deep flush. Flushing your cooling system with BlueDevil Radiator Flush is meant to impact vehicle performance and add to its lifespan.