I changed all the stuff in last years. New lower intake gasket, new plastic upper intake include all gaskets. New elbow. I did not loose any coolant after repair but the misfire was there. I think it leaking on top of the power steering where the heater hose goes into the car.
Oh and no cooland in oil an vice versa.
The plugs are all pink front and back bank. I did not picture the last 2 spark plugs because the daylight was gone and I put all stuff in the engine.