Just so you guys know the actual answer to why these cars take a long time to warm up. The same engine was used in the Forte for a couple of years and they also take a long time to warm up. They have an electric thermostat and even though I can't prove it I swear that they always allow some coolant by even in it's "closed" state. I base this on having serviced these cars and when you need to burp the coolant after filling it you put it in filling mode with the scanner which will electrically open the thermostat. What I have noticed is that I fill them with coolant, start the car up, put it in fill mode which opens the thermostat and you would expect the coolant to get sucked in instantly to fill the rest of the system (this is on bone dry new motors when they are installed) but yet it doesn't so it seems like it was partially open the whole time. On other cars you can definitely tell when the thermostat opens as you get big bubbles and have to add coolant.