I bought this car about 3 weeks ago and noticed the smoking of the exhaust only when starting when cold (sitting for over 4 hours). It does it for about 30 seconds, then will not smoke anymore. When driving, even hard it will not smoke. Is this normal for a 2006 Grand Prix GT? The temperature is around 65f with normal humidity, around 300 ft elevation
YouTube - 2006 Grand Prix GT - Stock Exhaust