Hello Benzmac, sorry for the delay but went away for the weekend. During drive to destination noted that the outside temp was about 95 and the temp gauge sat at the 100 mark on the highway with speed ave. 75 to 85. After getting off the highway in the city with the A/C on the temp gauge went right below the next higher white line. Is this normal? I was under the impression that a cooler engine temp would create less stress on the engine and the oil. Is this correct?