i can only tell you that mine usually stays at the same running temp, which i figure to be 185, it does raise a little at the drive thru or when caught in traffic...
it did run a little hotter when i first got it, but i flushed out the dex and replaced it with prestone ext. life and it cooled it down...
sorry i can't help with the pass. heat problem, but someone else here i'm sure will