I've noticed that the A/C in my 2013 X-Runner doesn't seem to get that cold. I purchased it used, so unfortunately I have no time period to compare it against. I can only compare it to other vehicles. Compared to the 2003 F-150 that I had the X-Runner A/C pales in comparison. Does anyone know what the temperature should be when on full blast? Also, has anyone tried using the A/C refrigerant in the can with gauges that you can buy from the auto parts stores? Are they any good and worth trying? Thanks.