wondering what temperatures our engines should run, got a message from SD Crossfire, where he explains not only what temps we can get, but how this we can read at the gauge, which is what we really need:
Originally Posted by phil alvirez View Post 24
could you tell the temps on your xf? and how that shows on the gauge? thanks

Ok, so I did a long drive yesterday, used my OBD2 connector and compared it with the temp gauge. Below is the results I saw....
179F - Below the middle line, halfway between the middle and next lower hatch mark
190F - Just under middle line
195F - Exactly in the middle line
200F - Just over the middle line
205F - A few mm above the middle line (what most of us see when we drive)
207F - The highest temp I saw all day, including sitting for a while in a drive thru line.
In short, this car is by far the coolest running vehicle I have. Yes, modern cars are designed to run hotter these days, but still impressive that my Crossfire’s hottest temp is at the same level at the coolest operational temp of our newer RAM & Toyota vehicles. Don’t let the gauge needle location worry you, your car is likely running very cool.

Example of operational range:
2004 Crossfire 179F – 207F
2019 RAM Rebel 205F – 228F


perhaps this could be a sticky...

 

On the road at a steady 60 MPH, mine runs 186 deg F with AC off, 190 with it on

 

Is the engine pan still on?
Air conditioner on or off?
Wind speed.
From what direction was the wind coming from? Head on? From the rear? Side?
What was the ambient temperature and wind direction at each of your readings?
Gross weight of vehicle?
Tire pressures?