Range Rover specific

Forumites,
Front axle of my Range Rover has two ball joint seals, over time these seals weep oil, which sort of a normal Range Rover owner accepted thing. In my last Rangie grease had been put in the CV joint area through the normal oil filler plug, I ran the vehicle for four years and maybe put some grease in every year, not a lot just a little bit. The CV's were perfect, no noise etc etc. My recent purchase still had oil in the CV's well one did the N/S one, the O/S one has had a constant drip since I topped the oil up, I suspect there wasn't much in at all considering the amount I had to put in to fill it up. So I've heard that putting grease in is a fairly normal thing to do, is this right do others do this? I've now put grease in the O/S CV joint all appears dry now, I've left oil in the N/S CV for as long as it stays there.
So opinions and views please, i'm interested, I've sort of answered my own question I'm just wondering what others have done and what others opinions are. I used a moly grease seeing that what you normally put in CV joints.