What grease would you use to lubricate tuners on a classical guitar. I found using Petroleum Jelly (vaseline) too light. Any suggestions would be great. So I have a fender, an epiphone, and a Yamaha. All with vintage tuners. What's the best lubricant for these tuners? They're all perfect; and don't need to be changed, althoughI have Sticky Tuners II: Sealed Units Haze Guitars Reviving and maintaining old (and new) tuning machines TIL: The hole on the back of a tuner is for lubrication. : r Guitar 1 Fast & Easy Guitar String Lubricant STRINGTone