I agree. The gauge is mostly crap. But in this case, I don't think it's the problem since I can sit in the driveway (with no airflow over the rad) and the temp does what it should - and the fans come on right near where they should, just using the gauge reading.

However, a scan gauge is high atop my priority list.

Any comments on Stant as far as quality?

Today on the way to work it didn't break 180. Now it just warms to 180 and stays there like I have a 180 in there...