Mine also does this. It only did it occasionally with penzoil 5w20 or Schaeffer's 5w30, but since I put in the Castrol syntec blend 5w20 it has done it EVERY morning! I have only put about 300 miles on this oil, but I still think I am going to dump it today! My choices are Mobil 1 0w20, Motorcraft 5w20, Amsoil 5w30, or Schaeffer's 5w30. Any opinions are appreciated.