Quote Originally Posted by countilaw
I have also learned that it is best to use Rotella-T oil for the breakin process. The new oils on the market don't have the protection that they once had.
My thoughts exactly. GM makes a good product for an oil supplement that a lot of guys use for break in on a flat tappet cam. I use Rotella-T all the time for my flat tappet cam'd engines. If Rotella isn't available, Chevron Delo-400 is my next choice.