From the paint type category, I've used Bill Hirsch Miracle Paint, POR15, and a 2 or 3 parts system from Eastwood. All worked well. The Bill Hirsch product got quite a work out trying to preserve an '86 Omni against Michigan winters, and the Eastwood product was applied to a steel lintel on my house that is outdoors 24/7, and has held up well. The POR15 was mostly used on my Charger back in the early '90s, and has never been on the road, so no testimonial there.

Most recently I bought some KBS coatings for a couple of axles that need some preservation, but I have not had a chance to use it yet. I was going to coat an 8.75 for the Chrysler, then we had the garage fire, and haven't got back up and running yet. So no testimonial there yet either.