I know this is likely the oldest of Chestnuts. But with Chemistry advancing on all the time, has their been recently any developments with someone producing a good screen wash?
I thought i had brought a good one, but it just leaves smears and some kind of film when it dries, however strong i mix it.
I know the Chauffeurs years ago only ever washed and dried their windscreen with water. But is that still the best way?
I've found using kitchen 'Cleaning Cream' (like Jif) gets rid of London grease the best I know of, but is this likely causing issues with the screen wash, even though i rinse it off very thoroughly ? Thanks for any advice, on screen wash and methods.