I use Royal Purple; a friend of mine sold it years ago and after seeing the ball bearing test, I was sold on it.
link:
http://www.royalpurple.com/aboutrp/whyrp.shtml
The maintenance dept. in the industrial plant where I worked used all RP products for lubrication of the various rotating equipment after researching the competitors.
'03 GT Cruiser,White w/ Auto Stick
'02 Corvette (555netHP)
Member of 11sec. club &
NRA Patron Member