Thank you all so much for your help. I replaced the plugs which were very worn and the coils and car runs like a top. Will have to likely replace the PCV system in the near future. Conducted the plastic bag test on the oil fill and it did not suck it in but that will have to be for a another day. As...

In addition to the oil on top of the motor it appeared that the #2 cylinder plug was wet with oil. could this because the car was misfiring or could the oil be leaking down from the top? the gasket on the ignition coil was wet.

Ok so got the cover off to get the coils and the is oil sitting on top of the motor. Look like it coming from the fill neck. Any ideas?

Just an o2 sensor lean on bank 1

Thanks did not think about junk yards.

Great thanks. I'll follow up with you once I work on it Thursday.

145000 roughly?

Thanks for the reply. We have not driven the car since the diagnosis. I have already ordered the parts you recommended from FCPeuro. They sell them as a complete kit for all five plugs and coils. Should be here Wednesday so I plan on replacing them all Thursday. I will update on the outcome. Is ther...

I have an 08 S60 2.5T that started to idle rough suddenly after a road trip. Took it autozone to get codes read and it showed misfire in multiple cylinders. Their recommended fix was to replace plugs and coils. Has anyone else had this problem and was this a correct solution? How can you tell if thi...