I have an electric guitar, and its fingerboard in is rough shape after years of barely touching it and being lent to my younger brother (big mistake). I unfortunately don’t have an instrument shop close, so I would have to order oil for it, and even the closest one only carries like 1 or 2 kinds of string kits and a few arranger keyboards, not cleaning products.
While I probably could get mineral oil (not at the moment of writing this, due to weekends), I’m wondering how well cooking oil would work. Tried some grapeseed oil on some other piece of wood, where it wouldn’t be a problem.
NOTE: Likely will go with the mineral oil, so I also have something to clean strings with.
Vegetable oils for cooking are oxidizing but will oxidize slowly, like raw linseed or tung oil. It may have a slight odour as it may go rancid, though probably not significant. Mineral oil is a different kind of oil with a different purpose and won’t harden.
Did some reading, they also apparently get acidic, so it’s not a good idea.
I’ve used rapeseed oil to oil the handles of my knives and whatnot since I couldn’t be arsed to buy an oil for that purpose.
Seems to work fine since it’s a half-hard oil iirc.
(edit Canola oil for the Americans )
Mineral Oil would work and is food safe