What is the best way to flush the cooling system? I have oil in my coolant (dont' ask) and need to flush it all out. I plan on repeating the process numerous times to be sure to get it all out but really need to know the best way to do it. Is there any kind of pressurized process I can do? Is there any mechanics in the house? Is there any smart peeps in the house? Please help me clean out the system!!!! Tons of thanks in advance!