It should be accurate right after you start you car, provided it has had time to cool off. After that, the heat the engine generates raises the external temperature as you mentioned.Mandragora wrote:Mine shows up in one of the screens in the LED screen between the speedometer and tachometer. You just have to toggle until you reach that screen.
But I have a different question: my external temperature reading always seems to be too high, sometimes as much as 10 degrees (F) higher than the actual temperature. Anyone have thoughts on this?