Bill wrote....
  ProGold is great stuff, but it is intended for sealing
 and lubrication only.  For deoxidation, Caig makes
 another product, DeOxIt. 
I'll have to check, but as I recall the directions for ProGold say you can
use just ProGold to deoxidize as well, and if the oxidation is bad - to use
deoxit first, then progold.
With fantastic products like the above available, I just can't imagine even
discussing things like brasso and jewlers rouge!
Jay