My Erson cam came with these instructions. Oil and Additives It is highly recommended that you use a conventional SF or SE grade SAE 20 or SAE30 weight NON-DETERGENT motor oil with break in additive (Erson E911000) or Joe Gibb's Racing Oil Break in oil.
Due to the high ratio of detergents to zinc in new generation diesel oils, it is no longer recommended for flat tappet camshafts.
I wrote this ver-batim directly off the cam paper. I would've took a pic, but I couldn't get it all in the pic in 1 shot.
Now, I know Ted Eaton pretty much says he uses Valvoline 10w-40 in his car. Valvoline also sells racing oil which says directly on the bottle that is has the correct amount of zinc for a flat tappet cam. But if your going to buy a bottle of break in additive, why not just buy a 5 quart jug of Wal-Mart oil?
If you follow what my camshaft paper says, bar and chain 30weight is non-detergent, and only $9 a gallon.
