If you need some lubricant, why not graphite? Blow some lock lube in a tube in that hole. If it picks up any grease or oil, it will just make slippery gunk and not jam up the works or soften the wood.

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60th Anniversary AD Strat, Deluxe Nashville Tele, Player's P Bass. Mesa/Boogie Mk IV combo, Marshall JCM800, 1960A cab, Genz Benz El Diablo 60, Genz 2x12" cab, too many neat little practice amps and kit projects!

I did some more digging and it would seem that a product called Tri-Flow is really good for lubing machines. Evidently it is a Teflon lube suspended in a liquid that can be sprayed into the machine... then the liquid "carrier" evaporates and you're left with a nice Teflon coating on you gears!

Has anyone used this product?

Sounds good, just be careful. You don't dare want to get any teflon based stuff on your guitar's finish.

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60th Anniversary AD Strat, Deluxe Nashville Tele, Player's P Bass. Mesa/Boogie Mk IV combo, Marshall JCM800, 1960A cab, Genz Benz El Diablo 60, Genz 2x12" cab, too many neat little practice amps and kit projects!

Here's the thread where I got the info. Sounds relatively safe to me??

http://www.acousticguitar.com/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=12;t=003709

I have a 25 year old Ovation..........and the tuners are just fine with no lubrication.

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"I won't be wronged, I won't be insulted, I won't be laid a hand on. I don't do these things to other people, and I require the same from them."-John Wayne