My
oil temp tends to "follow" the Engine temp. Normally under 80 in a good cruise. In hot weather/traffic it gets to 100. I don't have an
oil cooler. On the track it can get to about 110-115 after a 6 lap sprint or 10min sprints etc. I haven't done an
oil cooler setup (yet :-)) as i figured its more plumbing to potentially leak. I always run good fresh
synthetic oil etc. Maybe one day. Although I do worry about a stone piercing the Oil cooler radiator core etc. Cheers Gregg