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I've just re-read most of your thread. It is going really well. Sorry to be a bummer, but I read that you washed your Patrol in laundry detergent. That stuff has a very high salt content, and it also not good with the rubber. It is best to find a good vehicle wash and wax. I have used Armourall wash and wax for many years, and it kept the rust to a minimum. It has only started to appear because I have been very lax in washing the Old Trol.