How often to maintenance your reel:
After fishing in salt water, you rinse your reel with fresh water, or soapy water. Rinse thoroughly. Dry carefully yet extensively. Wipe reel with old rag or sock with some metal preservative oil, just to protect the finish on the reel. Finally, oil the external parts. Repeat every day used on salt water. A friendly tip, only preform maintenance when used and only if you want to keep it running correctly longer.
So get out there and cast a line!