[sifonix]

Hello guys, I am trying to figure out why is my N54 smoking. Im running out of ideas, so far we replaced all the gaskets, measured compression - 175 psi across all the cylinders, replaced valve cover and rebuilt turbos. Im still smoking a little bit, currently running catless DP, secondary cats still on. We removed DP, inlets and chargepipe and no oil found. What to inspect next? Im thinking about valve stem seals...

[C4maro]

If it's just vapory white smoke at idle, that's normal.

[sifonix]

Yeah it is, but the car smells like burning oil, already went through half liter of oil in 300 kilometers. Now even my coolant is leaking through the cap. Could it be the headgasket even if the compression is perfect, no misfires, no milky oil, coolant?