Reply to thread

Message: <blockquote data-quote="meetoo" data-source="post: 209293" data-attributes="member: 4025">I'm sorry seech, but your statement is completely not based on engineering principle. A thermostat is a process control device to regulate a system at a desired operating temperature.   <a href="http://en.wikipedia.org/wiki/Thermostat" target="_blank">http://en.wikipedia.org/wiki/Thermostat</a>There is no such thing as a thermostat slowing down the process of engine heating up. An engine will heat up at the same rate regardless of the thermostat. When the temp reach the setpoint temp, the thermostat will kick in the cooling system. Then the cooling system will go on-off-on-off maintaining the temp around that setpoint temp. Just leave your car on idle in your porch and listen to your fan start-stop-start-stop. That is the work of the thermostat.If your thermostat setpoint is 71C, then the operating temp of your engine will be around 71C. If its 88C, then it will be around 88C. As the earlier article stated, modern car are designed to operate at 90C and if constantly operating cool than that, the computer will think the car is in warm-up phase all the time and will set the fuel enrichment, spark advance, etc accordingly. Think of all the long term effects on the engine, catalytic converter and so on, besides simply wasting petrol and increased moving parts wear.</blockquote>