This is what the Lakland FAQ is telling me to do:
Q. What recommendations do you have for maintaining the neck on my Lakland Skyline bass?
A. The necks on our Skyline series are relatively maintenance-free but should be cleaned with pure orange oil periodically. Avoid cleaners that contain added thinners or silicone.
We also recommend orange oil for cleaning the fingerboards. The maple fingerboard does not require any sealer after cleaning. We recommend Howard Brand Feed N Wax after cleaning for our rosewood and ebony fingerboards.
I can’t find orange oil anywhere. All I see is lemon oil. Is that as good as orange oil? What’s the difference? The Dunlop 65 Lemon Oil specifically mentions that it’s not suitable for maple, so I assume it’s not equivalent to orange oil.
Or how about this one? The reviews sound good, but it seems to be for ebony specifically, and it doesn’t say anything about the ingredients.