MRL 360 Coolant Temp 210+

BigBlockMopar said

I would FIRST confirm the aftermarket gauge's temp by pointing a laser temp-gauge at the waterpump, t-stathousing and hoses.
I have a SunPro temp gauge in another car that decided to add 20°F to the original temp one day. But the engine is also still running hot because of a partly clogged radiator, so all this didn't help matters when you're driving around and you notice the gauge at 230-240 on the highway.

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This was going to be my suggestion. I've got a fresh 408 with a new Champion 3 row radiator and dual electric fans. Temps on a hot 95 degree day cruising were pushing 215-220 but when I stopped, nothing seemed out of the ordinary so we pushed on. Drove another 30 minutes home and was really sweating it, literally. I put the IR temp gun on it and it read 195 at the thermostat housing and water pump. Cheap *** Chinese Auto Gage guages.