Swacch car wiper fluid concentrate contains lubricants, which helps in wiper operation. The solvent dissolves dust and any bug spots over the screen ensuring a squeaky clean windshield. It leaves your windshield clean in an instant and like the best ones, this also has antifreeze properties, so that if your car is in extreme cold area, water in the tank will never freeze out. Increases life of windshield wiper rubber, as less friction with glass makes no harm to wiper rubbers Don't let hard water residue cumulate on your screen Preferred to add RO water for best results dilute 10 ml fluid in every topup to get best result or mix 10ml in 10 litre water