I installed a new temp gauge a couple weeks ago and took the truck out for a drive. After warming up the needle consistently moved from the center dot to just slightly above it. As with the original gauge the new one had the number "100" below the cold dot and "230" below the hot dot below the gauge face. If those numbers are degrees, then the center dot would be 165 degrees. Anybody know if that's correct? If that is right then it looks like I'm about where I need to be.