I bought my '12 with 4,500 miles and i'm the 2nd owner. At about 6,500 I started it up and exhaust was smokey. Like when you crash and start it back up and it smokes. Took it back to the dealership and they couldn't replicate the smoke. Said there was a lil oil in the airbox but other than that it was fine. Yesterday it did it again for a minute or two. It now has 9,200 miles. Anybody else have this same issue. Should I worry?