Never tackled a set of vehicle wheels but on Harleys with the aluminum wheels especially dressers, is to polish them and have them clearcoated at a local body shop, I did my uncles dresser wheels for him 4 yrs. ago an they look like new still and so do others we have done.
But that could be it holds up better on the motorcycle wheels because they dont see the harsh weather that vehicle wheels see like road salt and extreme temps??
just a thought,
Tim