I know on idle i would see around 210-215 at the highest without the 180 and that is heat of the day. On the highway they did not change too much. I only saw about 5 degree drop so they were like 200 and now I don't see Anything but 194 if moving. Stop and go at idle city driving I get 199-203 at the light and as soon as I move they go to194. So idle dropped about ten degrees and driving it made temps stabilize more(194)and drop 5 degrees or so. Fan never kicks on now

 

That's good! Its right were i am at also. I just cant see how some trucks run 188 on the interstate and mine and yours run 194? We have the same t-stat oh well.

 

Do you run water wetter? I know a lot of people do. I don't so maybe those people run water wetter. As far as I know my cooling system is stock except Tstat and viscous fan. I run 60% water 40% antifreeze.

 

No water wetter and closer the 50/50 mix in mine.