First drain the coolant/oil mixture then fill with water. Then run the engine with a garden hose trickling into the reservoir and float the oil to the top of the tank and let it spill over.After removing as much oil as you can then do several flushes with cascade dishwasher detergent. Repeat the garden hose in reservoir before dumping each flush as any oil will float to the top.Its messy as hell but it works.
i was gonna say something like that, but i hate messes that big.. i like that kind of mess here....keeps the dust down... lol