Radiator system flush uses the latest US formula. It can prevent the  cooling system from building rust and scale rust and scale builds by  itself during the runing,and avoid engine from boiling due to the  rust blocking cooling system , effectively protect normal operation  of the engine. It without acid and alkali is harmless to aluminum,  copper and other metal fittings and rubber parts. It containing the  furring activating factor, can swift and reliably and effectively  remove scale in the cooling system . it is compatible with any kinds  of anti-freeze fluid.