Any of you notice smoke at night?

[sierra248]

I've noticed this pretty much since car was new. Its easiest to see at night when another car is behind you with headlights on. If I take off full bore from a light or something, I'll see a good amount of smoke in rear view mirror. Happens only occasionally and doesn't effect anything performance wise, just odd. Sometimes I think its Tire Smoke but I'm pretty sure its coming from the exhaust as I have pretty much brand new Michelin Star Specs in 225/45/18 and I can light them up if I want(I dont often) but under aggressive driving they dont spin very much at all, even with Traction Control off, and I cant feel them spinning.

BTW, car never smokes at idle at all or under normal driving just occasionally when I floor it in lower gears. I think the lower gear thing is just because of wind dissapating it at highway speeds and I can't see it.

Thanks in Advance for any help,
Tom

 

[Sport6]

It is because of how rich the car is from factory especially at full throttle.

 

[sierra248]

Well, better then too lean I guess. Wish I was closer to warranty being out or I'd drive out to Texas and have Cobb tune it for me.

 

[MikeHTally]

You'll also notice the smoke if you romp on it when the sun is behind you. That's all them little hydrocarbons breakin' out.