I just ran mine from the shop (leaky shock had to be fixed) to home which was 43 miles, mostly freeway. I was forced to make the trip when it was 103 degrees outside, dang. Anyway, on the freeway it showed 90-95 degrees C
oil temp, then 85-90 on side streets with both fans running. Water temp was 5 degrees cooler than the
oil temp throughout.
Mind you I was taking it easy because of the outside temperature.
My personal plan is that if my
oil temp ever hits 110 degrees C I will stop the car and let it cool. I don't use
synthetic oil which, I believe, can tolerate a little higher temp than that before breaking down.