I was sitting in the parking lot for about 20 min with the car running. Had the a.c. on a little to cool down the interior. Right before I drove off I blipped the throttle and man did a lot of white smoke come out of the exhaust. I looked in my mirror and I was in shock. Its the first time I've seen any smoke come out of the exhaust especially a large amount. Guessing it's oil related but not for sure. What are things to look at or into? Could this be turbo related? I don't see any oil leaking from the oil feed line to the turbo. Any input would be awsome. 2011 mcs

 

Valve guides/valve seals are the best bet for bluish smoke from the tailpipe.

 

White smoke is water, blue smoke is oil.

 

How or what can cause that much "water" in the system to cause as much smoke as I saw? I know you guys don't know and I didn't catch it on camera or anything, but it was crazy.

 

well water is a byproduct of combustion. and depending on the weather conditions, maybe it was perfect conditions? has it happened since? i had white smoke coming out when my HPFP was failing, come to think of it, on cold starts when it was sputtering trying to find idle.