Hi, our 02 White Sub was washed a couple days ago (a touchless "laserwash"), and today I noticed hundreds of tiny rust "spots" over much of the truck especially on the lower panels and rear doors. Its even on the fender flares, and moldings, so I know this is not coming from under the paint, but rather something that was sprayed or fell on the truck. Its not noticeable until you are right on top of the paint.
Originally, I had considered that the car wash itself had contaminants in their water system that was sprayed onto the truck during the wash, and we are seeing metal contaminants rusting, or its some other residue that looks like rust. I'm going to check with the Car Wash tomorrow.
But checking Google, this sounds like "rail rust" caused by tiny flakes of iron off an active railway. Sicne I do not live near a railway, I wonder if the truck always had this, and we did not notice it when we bought it in December. I'm surprised I did not notice it at the time, unless the probem became more apparent after the wash.
Has anybody else dealt with this issue and have any suggestions? Again Google suggested an Acid Wash or Clay Bar treatment, though I'm not familiar with those. Does this resolve the issue for good?
thanks Bob