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.

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Silver Honda Accord, 2006
Silver G500, 2003
Silver SLK-320, 2002
Black ML-320, 2000
Bule Porsche 993 Targa , 1997
Silver Merkur XR4Ti, 1987