Quote:
Originally Posted by martopoulos
Shouldn't it be protected, though? Like I said, a tech showed me an older BMW that had next to nothing, even though the owner lives in the same region. If everyone's aluminum parts look like this in SoCal, then that's one thing, but if not, then I'm confused about the discrepancy, is all.
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depends on the contaminant, in any event, oxidation will protect the metal underneath, so I would just leave it.