If your talking about raw unfinished wood I agree with projectx102, I use four coats of Minwax Tung Oil finish sanding lightly with #0000 steel wool between coats, then use a tack cloth after sanding to clean the surface. There after for occasional cleaning I use Formby's Lemon Oil Treament.
Tung oil. Len seed oil. I have been using Remington "Rem Oil," which is a gun oil for years on my maple necks and I think it does a great job. I also have plenty of it on hand, as I shoot often. It will really make bird's eye grain pop out. So I consider it a "win/win."
I'm talking about a new neck and body. I've ordered a alder body, and maple neck from Musikraft. there website says they use a shellac sealer on the necks.