Whatever ford puts in there. Any modern oil that meets the current grade and viscosity will be fine if changed on decent oil change intervals. How many engine failures have you heard of due to cheap oil recently? Keep the oci up, use current spec oils, and you will be fine. Everything else is just mental masturbation imho.
When the warranty is out, I will either do it myself with whatever is on sale, or walmart it. (minus the fram filter)
2016 GT Premium black out 6 speed.