Oil Spotting on Valve Cover

[Bill W]

After a short drive I have oil spotting on top of the valve cover under the MAP sensor. It's been a year now and it never gets worse than the photo shows. I've tightened the valve covers. I can't see oil leaking any other place under the hood. Any ideas where this is coming from?

 

[99RT10GTS]

Take a dry rag and wipe it clean.

 

[robi68]

Mine also occasionally has a halo at that point, but no leaks, I think it's vapors.