Hey guys, a while back i put the vq3.0 DE-K motor into my 97 maxima. I was under my car doing new motor mounts, subframe bushings, and also a new lower radiator core support and i noticed oil was leaking. The oil leak is coming from the EGR plate on the intake manifold just underneath the throttle body. Now my question is how much oil should be in the upper intake manifold to begin with i assume there shouldnt be much if any at all ? I mean there wasnt a ton of oil, but good enough to keep leaking out of the EGR plate. What would cause oil in the upper intake manifold ?