aND DOES THE tHERMOSTAT oPENING UP mean that the Engine has "Fully Warmed Up"?
This is based off of "First Start in the day.morning, Idling, not bein gDriven."
Thanks
1991 Olds Calais, 2.5L Iron Duke "Tech4" Motor, 180-Degree Thermostat
Soooo.. Thermostat CLOSED = Coolant circulates to Head...