High e.g.ts

[sicwitted44]

Normally my truck has been running at an average of 450 degrees running down the highway but since it has gotten cold here at work, 10 below I've been averaging 700 degrees. Is this normal?

[travisH3]

Depending on the grade mine will go from 500 to 900, passing, cruising, towing all play a big part in it. I haven't noticed a difference in mine but I will check it out heading to work tomorrow and report back