SVTCOBRA, I doubt you have racked up enough miles on your 08x yet to warrant sparkplug changes, I picked up an 07x and was interested to find out if this problem carried over from the de to hr motor. Had an 03 Z awhile back, and I know all about the oil on plug issue. Have any info if this affects our v36 HR's?
I have 62K on the 08X and don't plan to replace the plugs til closer to 100K....but, I guess that I should check for oil leaks....
The plugs that I pulled on the 05 and 04 looked fine, but I replaced them since I was pulling them all out and they were not very costly.
10 years on this forum and still don't know engine codes or vehicle codes!!!
So, not sure what V36 HR equates to as far as vehicle make/model/year.
As for the G37's, I haven't heard much about them having this issue.