I have a similar drive, 45 mile each way 3-4 days a week from Surprise to Chandler. (LR AWD model)
AC is left at 70 and the fan speed is at 5 or 6 as that keeps the car nice so far (was almost 100 today on the drive to worktoday).
My Wh/mi is always in the 220's so take that into effect if you...