Okay, first the powder is called "Graphite Lube" by Qualco. I simply bought it at my locate Auto Zone. We got the door panel off and after playing with the window for quite a while was able to get the window back in track. For anyone who's never done that before, know that there is a "sweet spot" the window needs to be at to get it into track the best. About an inch above bottom was what worked for us. So we rolled the window up and down several times and it fell off track again. The Auto Zone worker told me a little goes a long way with the lube. But it fell off track several times. I kept working the window up and down until it went several times in a row without falling off track. I'm hoping that fixes it. I still want anyone elses input on this matter since once this cold weather blowes through I have to do the passenger side also.