I'm developing small spots (~1cm) of light surface rust on my exhaust tips. Any ideas on the best way to get rid of it and/or prevent it? Should it even be happening? Would have thought for sure they would have been coated....makes me worry for the rest of the undercarriage!

Also, my front beak has some water spots that I can NOT seem to be rid of. I don't think they're from me washing it...I dry my cars after a wash. Anyone else experience this, and any luck getting them off?

Pics tomorrow if I remember...thanks!