so I went to change my spark plugs on my 05x and found oil on the driver side spark plugs, i believe #6 and #2 ( closest and furthest one). Stopped and did some reading.
I am guessing the valve covers need to be replaced, so i gathered up all data here. From what i read, you cannot purchase a gasket to replace this.

excellent Youtube video on job.

specs for torquing and exact way to remove.
http://www.nicoclub.com/FSM/350Z/coupe/2005/em.pdf


other threads here.
https://g35driver.com/forums/faq-diy...lug-tubes.html


https://g35driver.com/forums/g35-sed...placement.html


looking for the part numbers now. to be continued.

 

valve cover right.
13264-AM600

valve cover left
13264-AM610

 

My mechanic just used some RTV sealant on mine when he changed the plugs. So far no leaks. You just have to clean every thing up spotless.

 

Mine did that at around 75k. Never fixed it, at around 150k i did plugs,again, little if any oil. 204k miles later it is still running and passed California smog last month.