OK, I did a search. I know that it could be a cracked head or bad head gasket. Before I go have a leakdown test/replace my head gasket -- I thought I would ask the question. So, the car smokes when warm -- it also smokes after I turn it off. I can see condensation on the rear bumper. Now, the car has not been driven in a long time. Before I bought it -- it sat for a few months. Since I bought it I have driven it twice (winter in Michigan = no S2000). Also, when I picked it up -- it had almost no gas in it. Is is possible that the white smoke is just a result of the car sitting. I had the oil changed before I took it home -- no sludge. Also, my coolant level is just fine. I do not smell anything sweet from the smoke. The car runs fine -- except for a rough idle (it shakes the shifter knob). What do you guys think. I am new to S2000s. I have owned two Hondas in the past (1997 Acura Integra GS-R and 1999 Honda Prelude) and never had this problem. Any help you can provide would be greatly appreciated. Thanks!

 

could be condensation. This car has big pipes to hold moisture in.

 

Let's hope so...

 

The shift knob vibrating would most likely be normal. Unless you would describe it as a "violent shake" then I wouldnt worry to much about that.

Is it showing a check engine light?
After running the car for some time, does your coolant level indeed change?
The exhaust system on it is stock?

 

Check your catalytic converter....

fltsfshr

 

well my car does this everyday... but then again i dont have a cat...

 

Defintely not a "violent shake," but noticeable.

No CEL.

Nope, coolant level stays the same -- no issues there.

Stock exhaust.

 

I will check the coolant level more closely -- but I don't drive it very frequently now. It has been below freezing here for the last 6 weeks.

 

What do you mean by check my cat? Could it be clogged -- could that cause the problem?

 

It could be some moisture trapped in the exhaust system. Really can't tell until you can get it out for a lengthy drive and possibly burn away the moisture.