jaja

Thanks Mr. B for your answer. At the moment i'm not ruling out anything. Where is the engine breather located?

at the moment it's difficult to say but i's asuming it's burning oil. Actually the reason why the turbo was rebuild is that entire intake system was soaked in oil. At this point i'm assuming that some piston rings or pistons are gone but i don't want for the moment to open the engine and I'm trying to exclude other causes. I think i will clean again the intake system and the manifold and see what happens

Thanks Asikingforit. already did this because the Turbo was rebuild recently but i will check the pipes again. The EGR Valve was also cleaned. Anything else i can check for?

Hi everyone, My Forester started to leave behind a big cloud of smoke. From the distance the smoke seems to be blue but at the exaust is more gray / black. The engine seemed to stuterd briefly and for a second had a rough idle. Any ideea where sould I start the diagnostics?