Team Fiat,
This is a new one for me and I need a little direction. My steering box started leaking from the top.

I am pretty sure it is coming from the center adjustment screw and the nut on top. It is tight, but still leaking. What should I try to stop the leak, and what oil needs to go in there. I saw on one post that you should put some sort of "leak stop" in with the oil? What do you think about that?
Thanks,
Don