Join Date: Dec 2009
Thanked 36 Times in 32 Posts
Pop off the lower CAC hose and see if you have oil buildup there from failing turbo oil seals. That is a serious issue that can cause engine runaway and total destruction. That is one place that oil can leak and not be immediately obvious.
Oil can also potentially leak into the cooling system from a few types of failures, but that should be readily obvious from inspecting the degas bottle for oil contamination, overfill, etc.
I'd send a sample to Blackstone to see what contamination there might be in the oil. Of course I send a sample from every oil change anyway, which is a good idea since it establishes a baseline and history.