They put Rotalla F107 225/45/R18 on this time. I went and bought new valve stem covers. Today it got up to about 45 degrees. A heat wave from what we have been having. Around 20. Anyway tonight after work. Tire pressure is normal. Could it being so cold cause it not to seal good? I'm gonna give it one more day then I will call the dealer if I still have problems. Oh, and I did get some money back.