When I bought my G35 used from the Acura dealership I work at, it already had some mods, including the Kinetix upper plenum. I noticed the other day there seems to be a very very small oil leak from the gasket under the plenum.
Now from what I know about motors, I know there is no oil being pumped through the plenum, but a little will make it's way into it.
Has anyone ever seen this before?

Update, I think I found it, all the bolts holding the Plenum on were not all the way tight. I guess previous owner didn't get them properly tightened.

let me know if theres still a problem. i'm about to install mine but before i do i would like to know what the outcome was.

i used a bit of silicone to the cork gasket for reassurance. it looked ugly, but it worked.

Do you guys like your plenum? I have the Kinetix's as well, but it makes an annoying sound at low RPM's.... Do you have the same problem? I kinda like the stock set up...