I've been using olive oil to condition rosewood fretboard on my guitars for a decade now. How many of you use olive oil? I heard that it tends to rot the wood after awhile but I've never noticed any deterioration. After trying different oils and products I always go back to olive oil because in the end it seems to last longer, even after exposing the guitar to dry environments. I remember having this cheap beginner strat that I used when I first learned guitar, I gave to a friend for a couple years and when I got I back I immediately put it in a case and forgot about it for about 3 years. When I opened the case to inspect the guitar, the fretboard looked surprisingly good and didn't need conditioning. Is there any truth about olive oil rotting fretboards or I'm just lucky?