Originally Posted by
Duelist
Unfortunately, you can’t clean up actual pitting because pits are where corrosion (rust) has eaten away metal. You can clean, protect, and preserve it, though:
Clean - lightly apply and buff (by hand, with a cotton cloth) Flitz metal polish. Will remove rust. Powered buffing will ruin all patina, finish, and value, so just don’t.
Protect and preserve: oil where it needs lube. You can apply a wax to the finish, or oil it, but realize that oil will evaporate over time, so it will need more frequent attention than with wax. Don’t wax the internals.