Ok guys, maybe you can give me some insight.
My wifes 850 turbo smokes after it has been idling for more than 10 mins.
Example, tonight we were running errands, afterwards we needed a gallon of milk, I dropped her off at the door of the grocery store, I stayed in the car with the a/c on, 10-12 min later she came out and we drove home leaving a cloud of blueish smoke behind us.
She has done this before, code said bad O2, replaced it, that was last fall.
Still smoked, thermostat was bad, replaced it, mpg went up but still smokes.
Air filter is good, tune up with new plugs and wires maybe 5,000 miles ago, did not replace the cap and rotor.
She does not use oil, I have had to add maybe 1.5 quarts since the last oil change which was a little more than 4,000 miles ago.
The next oil change I am going to switch to a motor oil that has less ZDDP in it and I hope that will help.
What are the common causes for this? All I can think of is the turbo bearing letting oil through.
I need to add that the EGR was clogged, cleaned it out and it has been good for the last 5,000 miles or so.
Tips, advice, anybody want to trade?

 

sounds to me like possible valve seals might be going bad, or possible the turbo seals!!!! blue smoke = oil being burned

 

Yeah I am thinking turbo seals, if it were valve seals it would smoke at start up.
When I drove truck they would do this after idleing for a long period of time and it was from oil getting into the turbo.
Well, I guess we have a smoker then.

 

This happened to me on my 91 950 Turbo. It ended up being the turbo seals going out.

 

Thats what I figure it is, I have not priced a turbo yet but I am pretty sure it is more than I can afford to spend right now.