I had my oil changed at my local Chevrolet dealer yesterday in my 2014 Impala. It has the 2.4 L motor. They informed me that the recommended oil had changed from the normal 5W-30 to a 0W-30. With this recommended change, my oil change went from the normal $40 to $55 and the $39.95 special did not include this type of oil . The only thing that I can find in the manual about the 0W oil is that it is recommended in cold weather months. Anyone else had this same experience or is it just my local dealer hitting me for an extra $15?