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I'm interested to see how this turns out, mine is smokey as well, but more of a blue, doesnt seem to burn any oil though. My boost maxes out at 12 psi.
Just a lil bit of my experence here, take it as you will. If you are getting a bit of blue smoke and not burning any between changes, your beating your head against the same brick i was. I would get large bluish clouds specialy for the first 5-10 km every morning, as well i noticed oil driping onto my front diff that looked like it was coming from the turbo. I figured ....great turbo seals are gone. After further inspection (after dealing with it for 6 months) i found that the blue was indead coming from oil and yes it was going through the turbo but the turbo was not the problem. The problem was the the crank case vent. Under normal opperation since these motors are "enviromentaly responsible" and re-burn there blow by gasses through the intake pre-turbo rather than vent it into the atmosphere like older normal diesels, they slowly slober small abounts of oil into the air filter suction tube before the turbo. When warmed up and running its not as bad , but let it sit over night and even if it is 0.05 of a liter or just oil residue runs down the tube and sits in the turbo housing. This (on mine at least) caused it to look like my turbo was leaking and when you started up in the morning and got on the throttle, the turbo essentialy attomized the oil with the air charge and created a fogging effect of blue smoke.
After looking into a couple options, Racor had a very nice system called a CCV system (closed crankcase ventilation) that separated the oil from the blow by gas, returned the oil to the crank case and returned the "clean" blow by gas to the intake . This system was to rich for my blood at 350$ So i opted for a MORROSO vacuum oil catch can. This can still separates the oil from the gas but it vents the gas into the atmosphere and holds the oil in a can for you to drain.
My truck did not exhibit any oil loss between 5k change intervals, so it goes to show you how little oil it takes to create this problem. As i said before take it at face value, this was just my experience and it had rectified my oil drip and smoke problems 100%.
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