In my opinion, its much easier to take the bleader bolt out of the rad.
Then put your gal. of antifreeze between the mirror and the side window.
Then get a piece of plastic tubing that fits in the bleeder bolt hole.
Next, suck on the hose to get the fluid running and stick it in the bleeder
hole. Let it go until fluid starts coming out of the bleeder hole and your
done. All this parking on the side of a Mt. And different kinds of rube
goldburges is just nonsence. Fill it up thru this vent, start the van up
and go. Yes, its that easy