I have a film on thescreen and cant get rid of it have changed wiper blades.Washed with vinegar and water. Used glass cleaner.Washed with washing up liquid .Still filming over.Any ideas PLEASE
might sound daft but a mate of mine t-cutted is screen to get rid of crap and it also took the marks off were wipers go,dont go daft with t-cut but u can try it
Glass cleaner wipes work fantastic (cheap from Sainsburys etc) I'd recommend you clean the wiper blade part that contacts with the window as well - you'd be surprised how disgusting it gets. Give it a couple of sheets worth of cleaning or until there is hardly any black coming off on the sheets - works wonders!
coka-cola phosphoric acid in the coke will cut through most stuff on your windscreen, just rinse off with water after.
If you don't want to waste coke. try vinegar (Acetic acid) instead. does the same job.