Oil leak down back of engine

[jmcuprar]

Was changing oil today and noticed oil down the back of the engine. It was on the turbo and directly below it. It could be coming from above the turbo but I couldn't see. I've read about the half moon gasket but it doesn't seem to be coming from there, is it visible around that area if the gaskets gone?

 

[W11TTX]

I noticed some oil down the back of my engine not really looked into it but am interested

 

[domin8or]

Best plan would be to clean thoroughly round suspected area with degreaser & keep an eye on it,that way you should see where it's coming from.