Thermostat temperature recommendations

toolmanmike said

If your cooling system is in good shape, a 180° would be perfect. Your 273 shouldn’t overheat with it. You want it to get to operating temp.

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I have been told that a car will run warmer than 160 with no thermostat at all. Is this true? I was told that the thermostat kept the water in the radiator longer with a thermostat actually cooling the water better than no thermostat at all. Cooling system is new. Radiator, water pump hoses.