Eagle1 makes an awesome polish for alum., chrome, etc. Its wadding polish. You tear off chunks of ... cotton I assume, and it has all the polish in it. It does a great job on newer wheels that don't have alot of stains. Mothers also makes a great wheel polish also. It's the paste type so it's a little more like waxing the rest of the car. Mothers is better for the older stained wheels. What ever you do if they are alum. DO NOT use a cleaner with any kind of an acid in it. That alot of the time is where those type of stains come from. I actually have both kinds from when I detailed cars. I would hit it with a good coat of Mothers and if the stain is still there use the wadding polish.
Parakeet
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Oh MAN I got NATURE on my Jeep.
05 KJ Renny that took the bad economy bullet
89 XJ that thinks tax time is Christmas
I will have another KJ I promise.