thermostat
Senior Member
Joined: Dec 2013
Posts: 206
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Ha, sort of.
The 'temperature' of a thermostat does not effect the regular operating temp of an engine. If a car is designed to run at 200°F, it should run at 200°F no matter what temp thermo you put in it. The radiator and other design features of the cooling system control the maximum temperature.
A low temp thermo simply opens up at a lower temperature, which will cause your car to take longer to warm up in the morning. And why would you want to do that? In a street car there is NO advantage, and might even contribute to more wear on your engine.
That said, I believe stock temp thermostat for any year S40 is 90°C or 195°F. I would go with that.
The 'temperature' of a thermostat does not effect the regular operating temp of an engine. If a car is designed to run at 200°F, it should run at 200°F no matter what temp thermo you put in it. The radiator and other design features of the cooling system control the maximum temperature.
A low temp thermo simply opens up at a lower temperature, which will cause your car to take longer to warm up in the morning. And why would you want to do that? In a street car there is NO advantage, and might even contribute to more wear on your engine.
That said, I believe stock temp thermostat for any year S40 is 90°C or 195°F. I would go with that.
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