Interesting problem with RD28T.

[Shaunous]

I have theoretical assumption that my journal bearing have been tearing after 210 000 km, or after overheating, or oil treatment, I don't know how my car was used before I bought it.
So the assumption is: when my engine idling the oil pressure is higher than vacuum in intake system and oil begins to sucking to inlet side or the free play in turbine shaft in slow rotation regime can result this effect and when I began to drive the accumulated oil following to the compressed oil t the cylinders and burn there.
And when I began to drive immediately the oil are not accumulated because small time with vacuum in system and the speed of turbo shaft are balanced and decrease of free play in shaft and journal bearing.

Uffffff it is not very easy to describe it in English ))

Don't get to technical , there is minimal vacuum in a diesel, only around the butterfly for the EGR system, engine oil pressure will be higher when your under load or revving the engine in comparison to just sitting still idling, in almost all cases, that is given the temperature is normal.

I think just go through the inlet and find at what point the oil is entering the system, if its not the EGR system where is enters the inlet i'd be checking the exhaust side of the turbo for oil, but in your case the problem you are explaining sounds like the EGR system is failing to me and or your PCV filter is no good.

But probably do all this when its not -14c outside

Cheers,
Shaun.