[pilut2]

Originally Posted by blue62

The system is designed to run within a certain temperature range.
Are you saying you go to a lower temp thermostat to stay within that range??
Or do you go to the lower temp thermostat to run the engine cooler then that range?????

Ok- so you don't want to do the research.... I'm not an expert, but those who are explain that the stock thermostat starts opening at about 186 F and is fully open by 210 F- whereas the low temp version starts opening at 160 F and is fully open by about 185 F. This results in lower operating temperatures- oil and coolant- for more most driving conditions.