Hello together have a small problem with the cooling of my Caprice Classic station. A few months ago it happened often that the temperature indicator slowly rose just in front of the red area, but then fell down again within seconds. This could be done both on the highway, as well as in city traffic or on the country road. Then was again quiet for a long time. My suspicion was the thermostat, which was then replaced. The random temperature rise has since been eliminated. However, the engine no longer gets really warm. The display remains at approx. 140 Fahrenheit (60 degrees Celsius) and the fuel consumption has also increased, which seems logical to me, because the control probably tries to bring the too cold engine with more fuel to temperature (is I right there?). My question is now whether, and if so, how I can bring the engine to the desired 200F / 90C or where another source of error is to be found. Thanks for your advice.