I have question. In the morning after after, the engine warmed up, temperature reading is normal. Then I drive the car for about 1/2 hour and when I put the gear into N, the temprature goes up, about 3/4 the reading. If I put the gear back to D, the reading goes back to normal again. After a while, eventhough the gear is in D the temperature goes up again, about a little more than 1/2 the reading. If I turn on the A/C and play around with the RPM (about 3,000 RPM) the temperature goes down again. Does anybody know what's happening here ?