break in oils

[m22mike]

[ QUOTE ]
Last I knew, Rotella was losing the zinc also...kinda like the switch to low sulfur fuel. People are now wondering why their engines are eating cams, just wait until the same thing starts happening to the injector pumps in everyone's diesel truck...but hey, we're saving the environment, right?

[/ QUOTE ]

Here is a thread from CRG http://www.camaros.org/forum/index.php?topic=305.0
Read the whole thing through, The Shell Rotella Zinc is still high enough for flap tappet cams, John Z gives the SAE rating #'s in this thread. API CJ-4
and as many others have suggested, use GM EOS during the break in too.
And Erics practice of removing the inner valve springs is good insurance too.
Also most of the racing oils will still have good levels of ZDDP in them.
In this Valoline add they even state an increased level of Zink.
http://www.valvoline.com/pages/produ...asp?product=94
Also do some searching on the WWW and the others Boards about this subject, much has already been discussed.
Mike