Maybe I read it wrong but surely saying it fails to splash lube top bearing is the same as grease doesnt work?

Grease won't splash lube like EP90, the swivel grease will be thrown up enough by the centrifugal force of the CV spinning but it will hit the top bearing and be worked in by it's own rotation, oil will splash lube which provides fresh lube in operation unlike the grease that ends up high in the bearing which will stay there until it is disturbed. Think of EP90 like a wave hitting an old wall, it will find ways through all the gaps and oil pointing resulting in a good soaking, grease doesn't have this characteristic. Splash lubrication also serves the function of cleaning and wear particles away and allowing settlement of said particulate which aids in the reduction of wear. Grease will suspend wear particles.

Not really looked into the technicalities of the grease and oil. But I always use the oil, no grease at all.
Just because I always have, and because it is convenient, there is always a drum of 90 weight here, and I have the bottle with the plastic spout.
I like the level plugs, good sign if something is going wrong.
Mine has drain plugs, I change the oil every year when I do the transfer box and axles.

Turboman said:

Not really looked into the technicalities of the grease and oil. But I always use the oil, no grease at all.
Just because I always have, and because it is convenient, there is always a drum of 90 weight here, and I have the bottle with the plastic spout.
I like the level plugs, good sign if something is going wrong.
Mine has drain plugs, I change the oil every year when I do the transfer box and axles.

Click to expand...

Interesting reading if you can find a good book on mechanical lubrication principles.

Grease and oil have different properties and there are merits of using one over another, in a 1 minute quick round up for example:

Oil is better at maintaining uniform temperatures, oil can usually allow higher ratings of rotating components over grease as it offers better lubrication. Oil allows better contaminant separation, as you state, oil can be changed easier. Oil creates less churning losses, oils don't use thickeners so there cannot be a reaction if different oils are mixed with incompatible thickeners.

Grease has it's benefits such as the ability to suspend solids like graphite or molybdenum, it also seals better and tends not to leak like oil so a big pro for Land Rover use, grease has better start up properties, grease will remain where it is needed, grease will tend not to separate out if left for long periods unused.

Turboman said:

Not really looked into the technicalities of the grease and oil. But I always use the oil, no grease at all.
Just because I always have, and because it is convenient, there is always a drum of 90 weight here, and I have the bottle with the plastic spout.
I like the level plugs, good sign if something is going wrong.
Mine has drain plugs, I change the oil every year when I do the transfer box and axles.

Click to expand...

Grease came about to replace the gear lube, because the seals leaked and people didn't pay attention of oil drips and ran them dry. I had 1 old 4x4 that had that swivel joint design. I was just a maintenance check when changing oil. People got lazy about checking them so grease was developed for ease of maintenance, and prevent a failure which with out a doubt LR got the blame for.