[urq] Oil leak!

[donald stellmaker]

Just took her out of winter hibernation and had the oil changed and egads(!) 
a fair sized oil leak. Seems to be coming from somewhere above the main 
filter. I took off the main filter to see if it was a filter gasket, no such 
luck, and took the turbo filter to see if the nut securing the housing to 
the block was loose, again no luck. I had the housing gasket replaced 2 
years (about 10K miles) ago so don't think that's it. Any ideas?