My BMW 530i is fitted with the original standard alloys which have now
become badly ingrained with brake dust etc which will not come off with
brush, sponge, power water jet etc.
I purchased some CarPlan 'Wonderwheels' and read the instructions which say
(amongst other things):
"This product is not suitable for use on the following surface types:
unlaquered, forged, anodised, chrome plated, polished"
This seems to cover most surface types!! Does anyone know what surface type
my original standard BMW alloys might have? and whether 'WonderWheels' might
damage them? ('WonderWheels' is alleged to contain hydrochloric acid).
Has anyone got alternative suggestions for cleaning these wheels?