Thread: Discovery 11 Engine & Transmission Temps

Originally Posted by garrycol

Remember the engine watchdog is measuring engine metal temp not water temp so comparing the to is not really practical. You are understanding what temp your metal is a normal operating temp and looking for changes.

For example - my engine watchdog normal temp is 72 degrees while the water temp on my water gauge is about 90. When driving the max temp my watchdog gets to is is about 76 - over this when moving and I get concerned. But when stopped at traffic lights it may get to 80 and that is no issue as airflow over the engine is reduced. Water temps will normally sit between 90 and 95 but will get up to 100 when driving slowing in hot weather - the watchdog if the car is moving will only get to 76.

So you need to learn what is normal for your car.

Garry

Those watchdogs can lead people into a false sense of security. I have a client that asked me what my operating temperature was and was happy that his Watchdog only sat on around 75Deg. I was referring to my coolant temperature, he was referring to his metal temperature so there is a big difference.

My D2a auto generally runs around 89-90 degrees. When towing a 1.5 ton camper temps at highway speed are around 91 degrees but have been as high as 107 degrees on long uphill sections. Generally, temps on shorter uphill sections are up to 100 degrees.


These temps are fro Nanocom readings.


Cheers,


Franz