I use Simichrome polish on the stainless steel parts: radiator cover, headlights, tail lights, etc on '30-'31 cars. On chrome parts I use any top quality auto polish. For years more then I care to remember I've done it this way on my antique cars and Harley's. Unfortunately, in the past, on my Harley's. I have rubbed the chrome off in places by polishing to much!
You won't have to worry about that using simichrome on stainless steel.
Bob-A
"Skirts are for Women not Car Fenders"
Chrome-it. Comes from NC
Give a look at Nevr-Dull, you can get this in a can from Advance Auto Parts. That is what I have used on my Chrome and works great