Used wd40 on mine. Seem to work pretty good without harming them Sent from my SM-G930V using The H.A.M.B. mobile app
I also like Simple Green but the best cleaner I've found is ReTire. Everyone I know who has used it swears by it. https://www.retire-pacpro.com/tire-info
Wouldn't recommend re-tire used it one time 2 weeks later went in quit my job( re-tired ) ain't been back to work since .lol
No spray chemicals ! Comet or Ajax cleanser is quick and safe. I learns this from an old guy at Lucas Tire after I ruined my fat whitewalls with Westleys bleach white chem spray. Sent from my iPhone using The H.A.M.B. mobile app
Bleach white leaves spots on my hubcaps. Can`t get them off. I have been using Scrubbin Bubbles bathroom cleaner for years. No spots on my hubcaps.