In aviation circles we use a couple different lubricants.  LPS is a really
fine lubricant to use, but the one I like is this stuff called "mouse milk".
You can buy it from Aircraft Spruce for about $15 a bottle.  It is so thin
that it gets into places that most penetrants won't.  If you don't want to
spend the ducats, WD40 is good for most situations.
Ken Wilford
Van-Again
John 3:16
PS the hardest part about milking the mouse is finding those tiny stools!  :)