[tnoice]

A quote directly from Pelican Parts Tech Articles.

"The factory thermostat starts to open at about 187° F (86° C) and only fully opens at almost 210° F (99° C). This means that the engine needs to get very hot before it starts sending its coolant to the front radiators. For this reason, I recommend installing a low temperature thermostat in place of the factory one. For example, LN Engineering developed a thermostat (now discontinued but similar thermostats are currently available) that began opening at 160° F (71° C) and fully opened at about 180° F (82° C); lower coolant temperatures translate into lower oil temperatures. It is my guess that Porsche designed the thermostat to open a bit later in order to help the cars run a bit hotter, which typically helps with emissions testing and the burning off of water out of the oil, which can then lead to longer oil change intervals. Installing the low-temp thermostat is a smart idea for engine longevity:"