I just had my thermastat changed over the weekend because there was seeping in its gasket. The last 2 days of driving it has not read higher than 160 degrees. I mean, it is a 160 T-stat but I was told this was the OE. My last one was running a consistent 190-200. The exact T-stat is a fail safe 160 degree. It is running at the furthest end of the spectrum, just up from 130. Is this normal?