[Raptor]

Compression test will only show a loss of seal. Bring it by and we will do a leak down test for $25 which will identify where the compression is going and likely the oil. I would guess rings most likely or turbo seals. If the valve seals are gone, typically when you stop the engine, on start up, you will get much more prominent clouds of blue smoke for a few seconds from oil that has seeped past the guides into the combustion chamber. Smoke coming from the PCV system (and or breather hose) is directly from blowby caused either from valve seals, head gasket or rings. In this case with the oil consumption and blowby if it isn't smoking more at startup, I say rings.

Hope that helps. If you want us to do the leakdown or otherwise, call the shop at 651-488-7774