2021 dodge ram 3.6 coolant temp Fluctuation

[mad_m9950]

2021 big horn 3.6 Temperature reaches between 200-230 in highway,Fluctuation and goes down in lower speed or idle.
anyone else had this issue

 

[Yardbird]

You will most likely have to remove all but two or three shutters in front of the radiator to cool it down on the road.

The shutters close on the highway to supposedly increase fuel mileage. I can't tell it hurt any taking mine out.

My 3.6 runs 194 on the open road unless I am pulling a long steep hill at lower speeds.

 

[mad_m9950]

You will most likely have to remove all but two or three shutters in front of the radiator to cool it down on the road.

The shutters close on the highway to supposedly increase fuel mileage. I can't tell it hurt any taking mine out.

My 3.6 runs 194 on the open road unless I am pulling a long steep hill at lower speeds.

You took all shutters out ?

 

[Yardbird]

You took all shutters out ?

I took out all but the top, bottom, and middle. That way the shutter arms (for lack os a better word} have some support all the way down.