Well, I have done all my tests and spent over $180 bucks in cleaning/degreasing agents. I have come to one assumption, there is not any agent that will remove 10-100year old cosmoline just by wiping it off. I've read articles about removing it off World War I and II guns and off printing machines. They have the same problems we are having.
The proper way would be to remove cosmoline is with a hot kerosene bath or kerosene pressure washer. You can remove some by sticking parts into mineral spirit baths for hours. But you can't stick your plastic and painted car pieces into that stuff. Ah-doy!
So in summation I have found (From you guys on this forum) that a simple technic of using a degreasing agent and a finger nail/credit card is the only way to go about the removal of the "C" word. I choose Catrol Super cleaner and a Macy's Credit Card work the best.
The picture is of me dremeling off the cosmoline after soaking it in paint laquer for 6 hours didn't work. Argh!