Advice needed. This Martin is at a local music shop. Evidently
Guitar Fingerboard Lemon Oil Cleaner 60ml Fretboard Lemon Oil for
Jim Dunlop Formula No. 65 Mini Care Bundle, Lemon Oil & Polish
Music Nomad Fretboard F-One Oil - Savage Classical Guitar
Roffee 60ml Lemon Oil, Guitar Fretboard Care/Cleaning/Polishing Accessories, Fretboard Cleaner for Guitar, Bass, Ukulele
, Fretboard Cleanse., 2 FL. OZ (59ml), Lowden Lemon Oil cleaner is recommended for conditioning your guitar fretboard (ebony or rosewood only) or
Lowden Lemon Oil
Jim Dunlop 6554 Dunlop Ultimate Lemon Oil, 4 oz
Cleaning an ebony fretboard with dunlop lemon oil
F-ONE gives wood its life back. F-ONE is formulated using a complex mixture of the finest ultra refined tree and seed oils to clean, condition & protect your fretboard/fingerboard. 100% free of any lemon oil extracts, waxes, petroleum distillates, silicone, and water. Music Nomad chose not to use any lemon oil because it contains d-limonene, which is a strong solvent that is used to remove paint and glue.
Music Nomad MN105 F-One Oil Fretboard Cleaner & Conditioner
Georgetown MusicD'Addario Lemon Oil – Fretboard Conditioner and
Guitar Cleaning Kit, FOLLOWIN Guitar Care System 7