Paper towels scratch the heck out of painted surfaces.
Doug,
I go to a local truck shop and get a bottle of Zepher polish ( blueish green bottle) and a bottle of What a Shine ( pink bottle). They work excellent on all metal surfaces, chrome, stainless, ceramic coated, aluminum, ect ( not painted surfaces). The pink for very dirty, and the Zepher for maintenace. I use it on all the metal sufaces on my car and motorcyles. I have even used it to polish up old antiques. I buy it at Coast Couties Peterbuilt on 4th street in San Jose.
Scott