I drive a 2007 GMC Sierra 4.8l and live in Rochester,NY.In my stash are Mobil 1,Castrol Edge w/ Syntec and Castrol GTX,all in 5w30.I'll probably only put on 5000mi between Oct and Apr.
Any oil in your stash is good for 5k miles OCI. If you're in North/South Dakota then either M1 or Castrol Edge will be better for the cold Jan/Feb months.