I've noticed a slight oily film on the silencer ring area of the turbo. Not much, maybe a drop worth in 2-3 months. There is no play in the turbo at all and it spins freely (as fast as one can spin it with my fat fingers) and is smooth. I'm using 0w40 synthetic and it has 130,000 on the clock. Its not bombed at all and the turbo sounds sweet with the intake.

Do I need to be worried?

 

Naw, wouldn't .........Heck, I'm not. Mine does the same thing. Always has. I think it might be slight oil residue from the airfilter.

 

Caution! Don't run engine with turbo inlet uncovered. It will suck rags, trash, and chew up fingers in a hurry.

 

Don't worry I'm not running it with it uncovered. I can only imagine the carnage of something hitting it at 10,000 rpm. I just noticed the film when I changed oil on it and have to remove the intake tube to easily get the oil filter out.