[6t8stang]

Mine are not coated as well...I wipe down with quick detailer like the rest of the car in between full cleanings. For the full cleanings, I use a Mother's powerball with aluminum polish.

One quick test could be to put a drop of water on the wheel...if after it dries you don't have more than just a surface water mark that wipes off (vs. needing to be polished off), you have a clear coat.