[PolarBear]

I don't know if this is right or not, but I think you want to set your fan temps closer to the thermostat, no? Fan 2 would basically be an "oh ****, somethings wrong" fan and will probably never come on at all. Those on/off temps seem way too far apart too.
I have the fans in my car come on at 20 above the thermostat, and off 5 over, then the other fan is 30 over and 5 above. Something like that, so fan 2 comes on more frequently as needed instead of waiting until you have a LOT of heat in the system

With it like that, when you're sitting still the temp is going to go all the way up to 190, then down to 160, over and over instead of keeping the temp relatively consistent.