Zach. A little physics dude. The radiator loses more heat energy when the water is continuously flowing. Why? Because the longer the water sits there cooling off in tge radiator, the less temperature difference there is between air abd water. The rate of heat transfer is directly proportional to the temperature difference between tge two mediums. Essentially, holding the water in there reduces the cooling efficiency of the system. Google thermodynamics and spend a few weeks reading if you want to truly understand it, because i dont have the energy to explain it to anymore detail than that. There's simply too much to talk about with thermodynamics.
Now, please stop posting things that are fundamentally incorrect. Check your facts. It's no coincidence that cooler thermostats are used to run lower engine temps
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