John, that is a clever trick with the floss.

I'm left wondering how the gauge readings differ from your expectation. And are you comparing to the way it worked before replacement? I have a general view that the gauges are very conservative on the lower half, in other words, the orange reserve area tends to span several interstate highway exits. Can't say whether that holds true in Nebraska, Saskatchewan, or Wyoming.

The gauge itself is adjustable too. It works by heating bimetal, so temperature is always a factor. Here are some very old notes of mine. Ignore the arrow on the gauge pic, I was just pointing out a typical failure for someone.





--
Art Benstein near Baltimore

Broken corn chips often resemble Minnesota.