new 340 engine start up questions

ESP47 said
I'm going to be going through this with a 340 here in a few weeks. Aside from the zinc additive, what weight oil should be used? Will 10w-30 work or is 30w the best?

I would think that a 10w30, 10w40, 20w40, or 20w50 would work with the zinc additive.