
Dark spots on chrome wheels. How to remove?
I'm trying to clean/polish the chrome wheels on my truck, and there are some isolated spots/tarnish on them that I can't polish out. I've tried using Griot's Heavy Duty Wheel Cleaner and Chemical Guys Heavy Metal Polish. I've been told that I shouldn't use acid based cleaners to remove the tarnish, so what other options do I have to remove this? I'm nervous about getting too aggressive with it, and it's very distracting when they are cleaned and polished otherwise.
Edit: I should probably mention that these are chrome coated aluminum wheels, if it changes the recommendations.