F-150 radiators

PDX.Zs wrote:
The analog gauges in modern vehicles really aren't gauges. They are electronic and tell you what the truck wants you to know based on actual temp.

What I am saying is, if you want to know how hot your coolant really is, you will need to install an aftermarket gauge that reads directly.

Edit... Just saw 516 had the exact point.

:-)

Numbers or not if the gauge approaches the red zone something needs to be done. While these gauges may not move while the engine is in the normal temperature operating zone they certainly do move when there is an issue to address.