I changed my oil yesterday and got some sludge off of the LN plug. Here is the thread.

Note, there were not chunks or even metallic bits that I could see. The spots on the pictures are reflections off a light that I was using.

http://986forum.com/forums/general-discussions/58460-first-oil-change.html

I have samples of the oil going to CAT and Blackstone Labs.

Thanks in advance, John