Engine operating temp

[Jfg1300]

Hello I am new to the Forum but I currently have a 2020 2500hd with the duramax. It is my third diesel and the 2020 seems to have a much lower operating temp according to the gauge. It fluctuates between 170-185 Approximately. The previous 2016 I had was very consistent running just below 210. I have asked dealer if it’s normal operating temp? Gauge issue? I am only concerned to make sure engine is at proper temp for emissions etc. any info would be great thanks 

[redwngr]

Sounds like a thermostat that is stuck open. 

 

 

[XY74]

This is typical of mine.  About 40F and not towing.  Goes up a smidge with the trailer.    

 

Edited December 23, 2020 by XY74

[CamGTP]

A grille cover would help raise temps in the winter.

[shadow gray 2020 hd]

Mine runs around 210.  Has not seemed to make any difference what the outside temp is, yet.  Once it is warmed up that is where it seems to stay.  

[XY74]

I suspect these gauges are rough approximations rather than finely calibrate instruments.   

[u3putt]

Mine 2021 runs right at 210 always.  

[Keith_Schumaker]

Mine says 210 on the dash but the reading over obd2 with torque reads about 184 when the dash says 210 so the gauge on the dash is probably a dummy gauge.

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