[san rensho]

Ok, I'll try. Low temp thermostat just delays car getting to operating temp, which prevents burn off of condensation in the crankcase. Water, according to LN engineering's website, drastically reduces IMS bearing life. But at the same time, since they make the low temp thermostat, they also say that lower operating temps prolong IMS life. So I don't know. Do a search, its been hotly debated before.

FWIW, I just did the waterpump and just replaced ithe thermostat with the stock part. After cleaing the radiators, it runs in the 93-100C range in 90+ (F) weather in stop and go traffic. I don't see this as a problem.