Originally Posted by Modshack

You have no issues at all...Just pull off one of the AN fittings at the Adapter plate and let it drain.. If you installed with fittings "UP" like most of the kits out there, just undo BOTH AN fittings and use air pressure to blow the oil out. If you're so anal to need to get every drop out, then by all means turn this in to a major project. Personally, it's really not worth the effort IMO..

and NO, you don't have to manually fill the cooler before starting the engine..