In danger of over thinking this. As long as the grease isn't from Spar or Nisa and says bearing grease / CV grease you'll be fine. I just use the most commonly available Moly CV grease which you can get in Halfords and any other High Street car shop. A bit different with the bearing grease on the off roader because of the harsh conditions. It has salt water resistant and anti wash out properties. It says.