What oil has zinc now?

I always used Valvoline to break in my cams and never had problem until this past summer. I used VR-1 20W-50 and wiped a lobe. It turns out that there are two formulations of VR-1. "Not Street Legal" and regular VR-1. I used the latter.

On cam number 2 I used straight SL rated 30W Rotell and Hughes Engines break in additive. After cam break in I changed the oil and filter, again with the SL rated Rotell straight weight and Hughes additive. No problems and the cam is still good to go.

Now it's winter and I need to change to a multi-viscocity oil. I will change to Valvoline regular VR1 in 10W 40 and again add the Hughes stuff. In a 1000 more miles I will swap to Royal Purple full synthetic as long as no leaks show up (**** happens and RP is very expensive, so are cams by the way, :) ).

RP also has a new break in oil but I have no experience with it. http://www.royalpurple.com/breakin-oil.html

I want to add that I still have no problems with Valvoline products. Only one lobe wiped and I still wonder if it really was oil related.

Roller cams for me from here on out. It's probably cheaper in the long run than all these additives.