Instead of just saying its incorrect, can you please share your knowledge and explain why its incorrect? Excessive blow by often equals oil in or around the air filter. This oil makes it down to the turbo intake eventually.

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1981 300SD 512k OM603

Go to German star online or call them and order a rebuilt turbo I think the last one I ordered was about 450.00 and totaly rebuilt you do have to send your old one for exchange, Worked for me , Jerry Master ASE certified Diesel Mechanic

When a turbo starts to go it will start useing oil and blow it right out the tail pipe, When one goes all the way I have seen them suck every drop of oil out of the engine Lots of black smoke and you had better get it fixed soon. If it is valve seals or Guides it will puff blue at start up because the oil rins down past the seal or worn guide and right down to the valves theres your blue smoke . now a valve cover can leak oil but really two qts in 400 hundred miles is pretty extreame, Diesel leak oil every where but usely large amounts mean turbo, or some other major leak from lines, filters, turbo feed and return line, oil pans are nortorous along with front seals and real seals, so what I'm trying to say here is black smoke means turbo , but only from my experience, Jerry Master certified ASE mechanic

Now, I am getting a hard startup and a ton of blue smoke that wears off soon after the engine runs for a minute or two. But at this point, the turbo is off, so I am going to go ahead and rebuild it, as I believe it doesn't spin as freely as it should. I am really hoping that the valve seals aren't the problem, but if they are, I'll deal with that when it comes.

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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much)

Wife's - '08 Saab Sportcombi Aero

Riding a '03 Yamaha Warrior