Well if you just want to know a good way to keep em nice you can do what I do. Whenever I clean the truck I put some Armorall on the tires and make sure the wheels get a fair amount of overspray. Let it soak in while you detail the truck. Last thing is wipe the wheels down and follow with a bit of your detail spray. Here's what my PYOs looked like after 7 salted winters and after 9 now they still look as good.
