Hi Milton
There are so many types of grease to choose from. (Most will work just
fine)
My reasoning is to look for greases that are designed to operate with a
wide Temp range.
This usually applies to most synthetic greases.
A simple trip to an auto-supply store will most likely stock brands such
as Castrol, or Mobil.
Those such as Lithium, Teflon, Moly, etc. should all work just fine.
Under High summer temps some greases can separate/run, so choose one
that has abilities not to liquify, and run.
Naturally, the Losmandy mounts don't rotate at 5000 RPM, so you won't
have to worry about heat damaging the bearings, or shaft surfaces. :-)
The greases involved here should be designed for bearings, handling
loads, and inhibit corrosion.
The most important thing as I have brought up previously, is to get into
the habit of periodically inspecting, and lubing the mount.
WIth good common sense, and care, they will perform flawlessly for many,
many years.
Sure hope I haven't confused you more! Mark