Trace of oil in turbo?

[volvero]

Question for the experts: My car has been smoking after like 3-5 minutes of idling lately. So I pulled the T3 to install a 15G and found a white trace in the exhaust side (see picture) Could that be a sign of oil leaking from the turbo that could explain the smoke?

Thanks.

 

[coonmanx]

White can also be an indicator of a lean condition. How do the plugs look?

Also, how was the boost and did it smoke under boost?

 

[towz-T]

i suspect it's white smoke?

 

[volvero]

White can also be an indicator of a lean condition. How do the plugs look?

Also, how was the boost and did it smoke under boost?

AFRs where rich under boost (10.3:1), boosting 12 psi in a B230F block. Plugs are the cold BP8ES and looked a tad lean.

 

[volvero]

i suspect it's white smoke?

No it was a light blue oil smoke out of the tail pipe, only during warmup at idle. No smoke during boost