As Silveradojoe said the fan doesn't come on until around 230, unless you have the AC on and then the fan is on all of the time. You want the temp. to get above 212 occassionally to boil off any condensation that may have developed in the crankcase.Thank you all so much for your replies. I'm not sure how high mine will go. Seems like the few times since I bought it that I have driven it the temp keeps climbing but I haven't gone far enough to see how high. Last I remember I got home and it had gone to about 205. I will have to try it longer and see.