Gentlemen: How do you look when you're hot?

clementine said

Get one of those $30 infrared temp gun deals. Then take temp at thermostat, rad, exhaust manifold etc etc. I think somewhere on here someone posted some 'norms' of what those temps should be. Thats what Id do if I was questioning the accuracy of the gauge.

$0.02

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You beat me to it. EVERYBODY should have one of those in their tool box. I used to be really worried about the temp gauge on my car (69 340 at about 375 HP with Griffin aluminum radiator) going about 80% up on a hot day, until I used my infrared temp gun and it was only 205. That may sound like a lot, but it isn't too bad. I can live with 205 in traffic on a HOT day with the AC going. I see in this forum all the time where guys say their car never gets above 180. That would be great, but I don't see it ever happening with my car.