On Wed, 24 Jun 2009 08:18:53 -0400, "Stormin Mormon"
wrote:

My thermometer in the Blazer reads dependably two degrees
high. If the gage reads 78F, the weather report on the radio
is 76. I don't know of any calibration for my Blazer. Maybe
your weather station has a tweak some where for fine tuning.

Contact Government Motors :-))

My Ford temp gauge is off by 2 degrees, but at 110 - 117 degrees it
really don't matter!