Wanted to share this link. Gas has changed. Now its Oil's turn. Required reading for classic car owners running flat tappet cams! Some will know, but many won't, everyone should! If anyone thinks this should be posted in a better place, please feel free. Want to get the message out to all. Good bye Zinc and Moly. To Here: http://www.dctra.org/?p=79

I've been hearing more and more about this problem, thanks for the info.