Well I did some research with the torque app my actual temp is a good amount higher then what the gauge says. When my gauge reaches 100 actual coolant temp is 140 (I guess this is why they switched this number to 160 on newer grand prix's), when the gauge reaches the line between 100 and 210 actual temp is 195. When the gauge reaches halfway between that line and 210 it actually is 210 (temp wouldn't go any higher the cooling fans kicked in)