My only concern with products like these on wheel wheels, especially thicker silicone-type ones, is that they may attract a fair amount of dust after driving for a while. It happened to me with tire foam so I wound up wiping down the wheel wells often. One trick I tried is using Blind Brite from Bed Bath and Beyond a little while after spraying down the wheel wells with dressing to try to reduce the dust build up. It worked fairly but not significantly.
Maybe Armor All would be better since its more liquid based. If you can get in there, also try buffing the wheel wells to get rid of the excess dressing once it sits for a few minutes.
