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Today most cars not only come with air-conditioner,cd-player, power steering, power locks, alarm and power sidemirrors, but with power windows as well. Being exposed to elements such as dirt, heat moisture and not the least, wear and tear, they turn sticky and slow down. Lubricating the window riser mechanism inside the doors with a spray shot of WD-4- or dolloping grease only provides temporary relief and soon the windows backslide to slow rise and descent mode. Why? Very simple, the rubber either has swollen or become brittle through time causing the glass window to drag into the rubber guides. Applying oil-based lubricants worsens this conditions because petroleum-based rubber components melt or gum-up when subjected to such lubricants, making them sticky. This friction can usually burn your window motor, break a cable, a gear or worse, shatter the glass.

A quick simple fix is to spray "armor all" vinyl and rubber and leather protectant on to the rubber sides and channels. Since it's water-based, this white substance contains a natural lubricant called glycerine, which is harmless to rubber but does the job of "lubricating" the glass to glide freely into the channels.