I used Mother's for the aluminum wheels and fuel tanks on my Peterbilt, and it worked well. On the chrome bumper and stacks , turtle wax chrome cleaner worked better and cheaper, and I was pleasantly surprised how long a can would last. On the GTX, I just use wax, as recommended by @dadsbee. I'm using up my left over metal cleaners on my wheelchair wheels, Mother's for the aluminum rims, and turtle wax polish on the spokes.Can't remember the name of the chrome polish my room mate used on his bike (Dupont?) but I knew it was more of a cleaner than a polish and within a year his chrome was looking dull. Don't know about now but Mother's used to be pretty good stuff.