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 ))
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