Temperature gauge not reading right...

The temperature gauge I'm working with was heated way past it's max. The new resting temp is now 130 degrees instead of the 100 it used to be. So does that mean I need to subtract give to take at least 30 degrees to determine an accurate temp?

Thanks!
Sandy

The temperature gauge I'm working with was heated way past it's max. The new resting temp is now 130 degrees instead of the 100 it used to be. So does that mean I need to subtract give to take at least 30 degrees to determine an accurate temp?

Thanks!
Sandy

Year make and model and engine?
First step is to find the actual engine running tempt.
And see how much or if the gauge is off.

What are you calling resting tempt?
Have you tried a new tempt sending unit?