To summarize: the original manual called for oil to be pumped into the rack - clean out your 'grease' gun, pour the oil into it, then pump it into the steering rack. Since then, a lot of folks have moved to the corn head grease, with the advantage being that it lubricates extremely well and doesn't leak out. Same deal: clean our your grease gun, add enough corn head grease, and pump it into the rack. I believe that the consensus is to fill the rack, as the stuff won't flow throughout like the oil would. Have the wheels up and spin the steering wheel back and forth in both cases.
Me, I use Royal Purple 75W-140 (and I don't remember why I made that specific choice). I removed the grease fitting, and slowly poured the stuff in (small funnel) and moved the steering wheel back and forth. I don't remember if I attempted to fill the rack or used the recommended volume or just added the recommended minimum and then more. I do remember it as being a bit of a slow process, to move the oil out of the fill area and off to the various extremities.
If I've erred here in my summary, I trust that someone will speak up. And can anyone tell me how to not have my signature stuff show up? I knew how to do it on the old system, but haven't figured it out here. And absolutely no implied criticism of all the work and effort that went into the current BCF. Later, Doug