If it were me, I'd use a light coat(and I mean 2/3 small drops) of a CLP like LPX or Gunzilla or spray a light amount of Ballistol on a clean, lint free cloth/rag & wipe off the surfaces.
Ballistol is handy because its good on wood, ordinance grade metal, rubber, etc. it's non toxic & CFC free. A can could last you 5/6 years easy.
Plus, you can also use it around your home or work shed.