I use Pledge on the black flake painted parts on my Fat Bob(i.e. primary cover, tranny side cover, and the black plastic side covers for the battery etc.) it works great, but that's all I use it on. I don't use it on my paint, or my chrome, or my aluminum wheels or aluminum parts. There are far better things to use on these surfaces. I have many years of professional detailing experience to support my opinions, but hey, each to his own school of thought right? IMO Pledge is for furniture, but do whatever makes you happy.