on the subject of engine temps, i can vouch that the pic above is normal as thats about where mine is. But i'm not a fan of the settings GM has, operating temp is 195, but the fans dont kick in until 200 something pushing the guage a little above half way. Makes for some wild fluctuations in traffic.

 

same here heavey traffic itll bump to 3/4 then back slowly but surely

 

@STUMPMI its on the original radiator never goes over 3/4 we flushed the coolant system alittle over a year ago when i started driving her only non orig parts on the car are the new starter used fuel pump and tires and radio stuff

 

Thats a good thing that it doesnt as the before mentioned...chevrolet does like to have a higher operating temp....

I guess I also failed to mention as you can see in the pic of mine with the ground effects I have added probably contributes to a little added heat containment...as well as hinder some of the cooling...air flow etc...on mine...

Good to know your not haveing any over heating issues as so many have had with the Montes....