The same thought crossed my mind, but to the best of my ability, while driving at the same time, I have tried to listen to the engine with the windows down and do not here anything outside the vehicle. It is a relatively subtle noise that really can't be heard if the radio is on, but sure is annoying when I have others in the car without the radio on and am in the middle of talking about how great this vehicle is to drive! Not a great testimony, but maybe it will keep a few of my friends from buying one, too!
As far as I am concerned they should shut the plant in Indianapolis down now,

well except for those of you who are waiting on orders to be filled of course.
"Oil that is, Black Gold, Texas Tea!" Jed Clampett