I've had several Auto Meter expensive race mechanical gauges read way hotter than the engine coolant was, one would read 140F when it the coolant flowing out of the upper radiator hose into the radiator was below 95F puke
I found that one by sticking my finger in the swirling coolant scope

Last edited by Cab_Burge; 08/25/20 11:42 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)