04-21-2017, 09:56 AM
In the past, I too, have used silicone spray with no discernable improvement. I would not use a flat screwdriver to pry the initial movement of the window as that will chip the glass. A thin putty knife is safer. Almost daily opening the windows was the only thing that seemed to keep them mobile.
Jon Kabbe
1993 coach 337 with Civic towed