Newedgetim

Hey everyone I have what appears to be residual oil all in the lower intake valley under the intake mani. It seems to have built up a little there, I just got the car 2 months ago and had noticed it while looking over things recently. I changed the oil about 1200 miles ago and does not seem to have affected it to much. It might not be that bad of a leak but since I like having fun with the car, I want to make sure it's in great shape. Any suggestions on what to do to Maybe find out where it is coming from, what it could be?

Newedgetim

Some bad pics but just to get an idea

Z28KLR

Having a hard time telling from your pics, but is that just seeapge or is oil actually pooling?

If seepage, I wouldn't worry about it.

If pooling, then you need to make the decision as to whether or not you want to remove the intake manifold for a better look. If it's not that bad then I'd probably say "no". There's only two places it could be coming from - (1) oil coming into the manifold via PCV system and is leaking from manifold gaskets, or (2) head gasket.

R&R of the intake manifold isn't particularly difficult but definitely time consuming, about 3-4 hours for most people.