My HF aluminum jack needs a little lovin', mainly just a little top-off of oil, but nowhere on the jack does it say where to add the oil. There's 3 plugs on the top, so I assume one of them is the correct on, but which one?

http://i50.photobucket.com/albums/f306/maxyedor/Picture6-1.png

Open them up to see what one contains said oil?

on the left

x2 , left one

Is there not a rubber plug on the side of the jack cylinder? Under the lift arm?

Is there not a rubber plug on the side of the jack cylinder? Under the lift arm?

x2