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Old 08-11-2017, 10:06 PM   #11
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Join Date: Feb 2016
Location: Hebron
Posts: 698
Re: Thermostat / hot climate driving

A lower temperature thermostat doesn't necessarily lower the temperature, since it stays in the radiator less time, cooling against the incoming air. Theres so many other factors to be considered. In liquid cooling systems, the ability to cool is determined by a number of factors, but the basic keys are the surface area of the radiator (how big/how many small fins), the air flow through the radiator (fans on/off, speed of car), and how quickly or slowly the cooling fluid goes through the radiator. If the coolant spends a small amount of time in the radiator, it loses less heat. If it spends a lot of time there, it loses far more heat. Therefore you don't want the flow to be too high as the cooling system's ability to cool the engine will be reduced, not increased.
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