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Old 05-28-2014, 02:59 PM   #28
FRSupra
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I just wanted to share, I believe what causes this (obviously as stated above the trim rubbing on the metal) is the vibration from the door closing.

I have taken meticulous care of my car, and it's garage kept and not driven in winter. Sure enough, slight rust is present, but only on the drivers side. I have barely ever used the passenger side door, it's been opened maybe 15 times since I've owned it, and no rust is present.

If you shut the door you can almost watch it happen.
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