Here ya go.
http://classicoldsmobile.com/forums/...ng-wheels.html
to add to that, I remember reading a contribution on this subject someplace (could not find it though) by a person claiming to have chemistry knowledge. He said that the products used in automotive interiors (not leather of course) have a habit of "outgassing" with age. This "outgassing" of the plastic material is what attracts all kinds of hand sweat, dirt, moisture, etc that becomes the nasty, sticky mess we always experience on the steering wheels. No solution to prevent the outgassing as it will occur, just keep the wheel clean to diminish the build up of junk.