Fun with oxygen! Aluminum will oxidize so easily that when applied with a mild acid like vinegar the aluminum will actually steal the oxygen atoms away from the rusty steel, and the acid will help convert the rest of the rust to liquid soluable. I would recommend neutralizing your vinegar with a rinse or two with baking soda and water before a water only rinse before waxing.
I use 5% white vinegar to de-rust my hardware before DIY zinc plating, its good stuff.
I use 5% white vinegar to de-rust my hardware before DIY zinc plating, its good stuff.