[hiridn69gmc]

I would say all personnal opinion. If you run a 160, in the hot summer it would be nice your temps will stay down. When it gets cold though, your truck would never get to a good temp making heating also poor in the cab. If you went with a 210 it would kinda be vise versa. A 180 is a nice all around temp, but vs the 160 it will run warmer. So it is all up to what you are looking for, and what driving conditions you are in. Hope this helps!!