For the gears I would use chainsaw bar oil.The old girl will have feed gears again this Saturday. All the oil cups that have to do with oiling the shafts the gears ride on, do those get gear oil as well? I've got two oil cups on the carriage that oil the gears inside. I'm guessing gear oil for those also.
Any oil holes for ways I'm giving way oil.
Depending on the tooling that's respectable.So far she takes 0.1" a side with 0.008" per revolution at 6" diameter in mild steel okay, but you know she is working. Finish looks good. Faces nicely too.