What is the mercedes spec for the grease used in the ball joints,

[blau]

What is the Mercedes spec for the grease used in the ball joints in the ML. What grease would you folks use and why??

I know the ML has the Seal Fittings "good for life" (no grease fittings). I am thinking about drilling a putting in my own to grease the ball joints.

So I need in more info on what grease to use. I am concern using the regular all-purpose auto-suspension ball joint grease would deteriorate my ball joints boots.

Also what grease would you use folks under the CV boots.