Just recently I noticed gray-ish smoke from the exhaust, from what I can tell it only smokes at idle. Sometimes a little, and sometimes its pretty bad. If I let it idle for about 30 seconds then give it some throttle you can clearly see its blue. I have not noticed any consumption. I did replace the entire PCV assembly, no change. Very small amount of oil in the intercooler. My next step is to check the turbo hot side. Bottom end and turbo were replaced <20k ago, also heads were refreshed.