Grease on windows

[51desoto]

What's the deal with the grease on the side windows? My '03 Boxster gets a grease strip on each side window, usually after washing the car. I've seen it on a couple of other Porsches. Is this another one of those endearing quirks of Porsches, or is something wrong?

[CJ_Boxster]

Yeah i get that too, usually after i wash the car and the windows are clean, if i roll them down and back up, i see what looks like a spot of grease when a trail leading downward. Also the rubber trim on the outside of the door that wipes water off the window as it rolls down tends to grip the window and calapse as makes the window roll down much slower. hate that sh t!

[IowaS]

Ditto on my Porsche and Acura also......annoying as all get out...