Vehicle running warm 360 la

Dana67Dart said
Correct BUT after the temp the thermostat is fully open it makes no difference. So if it took 2 minutes to get to 160 vs 3 minutes to 185, at minute 4 it is 195 and both thermostats are fully open

Well sure, but the 160 is still open sooner. It makes a difference. I've seen it first hand.