Several years ago it was recommended that after polishing the uncoated polished aluminum engine cases on my 1995 Harley Sportster with Mothers Billet Polish, that I protect them with a "pure" carnuba wax rather than a synthetic "wax". Is this still true. If so why?
I have both Meguiar's #16
and Meguiar's Ultimate on hand. Any suggestions? At this time I do not want to invest in the new coatings.
Tom
I have both Meguiar's #16

Tom
