There is lots of ways to add turbulence to the coolant. But the only way you can extract heat from the coolant is with the radiator. Thats the way it's been since the internal combustion engine was invented. The longer it stays in the radiator the cooler it gets.
If your theory was right, we could do away with the radiator and the thermostat, and just add turbulence to the coolant.
If you don't make mistakes. your not doing anything.
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