Okay here is a picture of the "Ecology Drain Valve". The part in green is the "normal" drain plug that you remove and then screw in the pipe nipple or what ever tool you use to open the valve by pushing up on the grey parts to open the valve.
Some of the green parts I have come across take a 3/8 inch square drive and can be a bitch to get out. The easier ones have 1/2 inch square drive that works much better.
On the ones with the, in my opinion "undersized 3/8 drive" if they are not coming out easy there are two things that can be done to remove the plug.
First is a careful application of an air chisel to encourage it to move and then reinstall not quite as tight. "Been there done that" several times!
Second method for removing the plug if some ham fisted ape has totally destroyed the 3/8 drive hole in it all one has to do is get a big socket on the red part and unscrew the SOB so you can work on it on the bench while the transmission drains.
If some idiot, and I don't want to disparage the good idiots out there, decides to attack that green plug with a drill to get the plug out someone should take that drill and do a lobotomy on him.
