Tractor is back...I guess I just expect too much..Temp here yesterday was 93..Air vent temp was 57..John Deere tells dealer that generally speaking if vent temp is at least 30 degrees below ambient air temperature that is all they require of dealers..This tractor pulls more air through the outside vents than the inside vents so I guess that's about all it's gonna do but on a 100 degree sunny day that cab is like an oven and air vent temp of 70 is not gonna keep me from sweating..I guess that's why I see so many tractors with tinted windows.. Pretty disappointing for a $50,000.00 tractor..