Re: Intake manifold gaskets or something else?
It's VERY rare to have an intake gasket leaking. As for the oil, theres no oil running through the intake, so that wouldn't be the gasket. If the valve cover gasket was leaking, also rare, it could leak oil up there. Maybe the PCV valve or seal is leaking. The coolant can be checked with a pressure tester and watch where it comes from. That could be anywhere.