https://dannysengineportal.com/thermostat-issues-is-your-coolant-flowing-properly/
So, having car thermostat issues, can cause your engine coolant temperature, to change erratically.
Sometimes, car thermostat issues, can prohibit engine coolant, from flowing normally.
When required, the thermostat regulates the exact flow of engine coolant, that must pass through the radiator. Above all, to insure a constant and optimal, engine operating temperature. #carthermostat #stuckopen #stuckclosed #engineportal