My car also has this exact same problem you are describing since I changed my upper and lower intake manifold gaskets in November. I've driven thousands of miles at this "new operating temp" although, as long as I am running with my heat on the temp stays down in the 185-195 range depending on how cold it is outside. Otherwise it sits around 210 and can climb up as high as 225 before the fans kick on to bring it back to 210. I have posed this question numerous times on forums only to be told that there is nothing wrong with my car and it is normal to be at that temp. However, one person did say that this will happen if the brand of ECT sensor was no AC Delco. Apparently the other brands have too high of tolerance and allow the engine to get hotter than the AC Delco. I haven't gotten around to replacing the ECT with an AC Delco yet to see if it solves the problem. Just curious though, what brand have you tried running?
