vibration
picked up my brand new stx v6 last week. As soon as I got on the freeway I had a bad vibration from 85kmh, had my wheels balanced as soon as I could, I have access to a balancer, all 4 tyres had high spots on them, went back to Nissan they put on a set from their loan ute, went for a drive vibration gone, dealer got in touch with Goodyear, they checked tyres out and are replacing all 4 tyres tommorrow