Jeeps17
Cath Jockey in a P85
I have a feeling that the oxidation will occur in "untreated" cars exposed to at least moderate winters with use of salt on the roads, but that it may be exacerbated or at least more apparent (i.e. the streaks on the door panels) in vehicles that go through touchless car washes, where pressurized water jets are shot into and around the mirror mount.