I'm interested in what you find out. I am noticing 2 very intermittent issues. (1) sometimes at completely random times I will get several surges once I put it in drive. (2) I will get a random drop out of power at exactly 80mph. I've had this happen about 5 times. Its just for a split second. Hopefully someone can figure it out. I know it's not worth taking it in because it is impossible to replicate.Done some searching and found nothing. 15K miles. Have a horrible missfire feeling like its dropping a cylinder. Anybody had any coil issues? Feels just like a coil laying down under load.