Ahhhh, a very popular question. First, IMO with a 3k OCI, you could use any SM rated oil and be just fine.
Toss up between MC blend and Pennzoil Conventional, can't go wrong with either. That said, in FoMoCo product, MC syn blend and an MC filter is a great combo.
Either will go a LOT longer than 3k in your truck.
Try a 4k or (gasp!) 5k OCI and see how that goes. Going 33-66% longer each OCI will save quite a few $$ in oil and filter costs over the life of the truck (which will be long). A used oil analysis would pay for its self if you did a 5k OCI and it proves its good to go!