I actually just got my 1st oil change today from a Napa garage. I figured since they have a Napa right next door they would have the right filter. I stressed that this was the 2.3 disi turbo and it took 6 quarts of oil. They finish it and I see they have put 10/30 full sythetic mobil 1 in it. IS THIS A PROBLEM ? . Please someone give me some feedback on this. Will tihs have any major effect vs 5w/30. ?(shrug)