O.K. ;
I drove up and bought four old dirty wheels with junk tires and slight curb rashing, one has a dent in the bead from bouncing over a pot hole or whatever .
I dismounted the tires and fitted new correct valve stems then new rubber and decided to give RollGuy's cleaner a whack at cleaning off the decades wort of grime .
Looks pretty good don't you think ? .
I also tried some of this stuff (diluted 50/50 % with tap water) in the wheel wells :
.
All in all money well spent I think .