My wife has a brand new highlander with 3000 miles on it. It's been rainy like crazy this past week and this past week only as we have been in a draught here in central Texas this summer, but I just noticed today that it looks like her rotors have rust on them. Am I crazy? I would suspect that I am since the car hasn't even had it's 1st oil change yet. Could this be something else. My inlaws live in sand and we were there last week, but it really looks like rust. Thoughts?