Post new valve cover: oil and coolant lost wmilky residue

@kerriecollinson that would mean that your PCV valve is not doing it's job. That usually manifests itself in an engine that has rough idle and really poor fuel economy due to the engine either running to rich or to lean. You may also experience a fairly rough acceleration of your car, since the air-fuel mixture ratio will be thrown off. Since it is a job of the PCV valve to release some of the pressures that occur during engine operation, a valve that is not working will not allow those gases to leave and thus the internal pressures would increase. That will be evidenced by oil leaks on the engine block and heavy smoke from the exhaust because oil can actually enter the combustion chamber.

The one major issue that you are facing with this, is your statement "its low 1.5 quarts slight milky on stick and under oil cap.coolant in overflow reservoir gone". Your oil and coolant mix and get burned in the combustion chambers. Pull your plugs and take a look at the faces.

It all does sound like either a bad head gasket or a cracked head. I've had both and prefer the head gasket :-) In the old days, we used to check things out a bit different. This is not as easy as it might sound and you can get hurt on this since you may be messing with hot radiator fluid. So if you do this, make absolutely sure that you protect yourself and others at all times and use common sense. Never, ever stand in front of a open radiator or coolant reservoir.

Top off teh coolant and the oil. Once that is done run the engine until it is warm, then stop the engine. Now ( Careful!!!!) remove the radiator cap. Insert a funnel to where the radiator cap normal would be. Now, start the engine (Watch out for hot coolant!!!!). As the coolant circulates you will always notice "some" bubbles" but if you have lots of bubble (yes, you can tell the difference. It looks like you are boiling spaghetti) that means your combustion gases are being pushed into the coolant. That would mean you have a bad head gasket. The funnel is important since it does act as a chimney does for you fireplace. It makes sure that any coolant coming out of this, goes into a certain direction and does not just splatter all over the place.

Again, that is the way we used to do it many moons ago. Just whatever you do, be CAREFUL. If unsure, let somebody more experienced with this, do the diagnostic.