I`ve always wondered how well it would work just to use a dedicated wheel cleaner all year on an unprotected wheel. I figure that`s really what they`re designed for and how the average consumer uses them. Yeah maybe a bit pricey but so are these coatings...
I did that for ages (decades) and it worked just fine as long as the brake dust/etc. wasn`t left on too long between cleanings and the wheels did *not* have a compromised finish.
I`m still doing it this way on the Tahoe`s winter wheels.
I will say if I`m gonna go through the effort of pulling & cleaning the wheel then yeah, I`m gonna put something on there.
Eh, I do that anyhow whether I`m LSP/Coating them or not, even though (the `93 Audi`s BBS wheels excepted) I clean the back sides meticulously at every wash. There`s just no way I can keep everything in those areas the way I want them without pulling the wheels now and then, at least annually (even on cars that aren`t driven in the winter). E.g., there`s always some area of the calipers I can`t get to with the wheels on.
I`ve just been using flavor-of-the week spray sealants on the wheel faces every few washes. They clean up just fine sprayed with some poorboy`s APC at 1:15 and washed with a bucket of soapy water. Probably don`t even need the APC but it`s already there for the tires and wells. The barrels are getting kinda dingy but they`re unprotected and getting in there is pretty awkward.
Surprised you need the APC for the wells...I simply don`t use it that way on my vehicles as the shampoo mix works fine for everything except the tires (and I usually use a Rubber Cleaner on those). Even winter-dirty undercarriages...I just never need an APC.
Yeah, doing some barrels *is* awkward! Having the vehicle jacked up (both sides if it has a LSD) makes it a whole lot easier, and even on the `93 I can then access the barrels from the back side/underneath (simply can`t access the back of the spokes without dismounting them though

). Once they`re polished smooth and well-LSPed/coated it`s very easy to keep them nice and clean and I find that I only need to do a truly Autopian job on most wheels annually.
Eh, I`m gonna do the calipers anyhow...often do the wheels/tires/brakes in-between washes so they`re never too bad.
If you`re OK with the barrels getting/being dirty then that`s OK! Don`t let the Curse of Autopia prod you into doing stuff you don`t care about or want to do
Remind the strength of the shampoo mix these days? How many oz/gal?
About 3.5oz. each of Griot`s Car Wash and 3D Pink Car Soap + enough water to make a gallon of concentrate (about 121oz.).
Sometimes I just mix up my wheel/wells/etc. shampoo by eye,especially when using up old shampoos. I`m currently on my final gallon of M62...no idea what the actual strength I`m using is, don`t think it really matters all that much. I aim for a guesstimated ~1.75oz. in my roughly 32oz. spray bottle.