CLR ....don`t get it on paint !

Spray on oven cleaner, just make sure it is washed off your paint quickly if it gets on it, car detailer told me this one years ago, great for getting water/red dirt stains off & won't hurt glass.

I have the same problem, tried the clay bar but even that didnt work :(
Let us know how u go, I'm interested in finding out what fixes this. Its been annoying me for the last 8 months

CLR will fix it, use a small sponge and dap it on neat(un-dilluted)...carefully, then wipe off with cotton ragg and then wash car.....if its really tough leave the CLR on for 10mins before wiping off.

Spray on oven cleaner sounds like it would work...hard core but !

Yeah guy at work whos forrester got covered said CLR too, used it on his tail lights to get it off.

Can't even use cut and polish cause it's clear coated paint. It's not too noticable on the paint unless you're looking for it, but the windscreen is friggin noticable.