I use stoner invisible glass to clean window, but i couldn't clean driver side window, these stains are on outside window, they feel smooth on hand, when I use stoner invisible glass on it, it's gone but only for like 5sec, as soon as the cleaner's dry, the stains come out again. It's pretty annoying.
any tips?
it's only on driver side window, i had it since i bought the vehicle so i don't know what are these stains