I'm running Rotela T but I have heard that even that is now way down on zinc.

Like Pat says this is happening a lot (a friend just built a 460 Ford for a customer....wiped the cam in less than 200 miles). It's been put back together and going back in this weekend I think).

The tech line from Crane pretty much told him the things things that are listed above.

For now it seems like EOS, Brad Penn and possibly Castro Syntec 20-50