Yep, did the job with the Redline CV2, but ordinary grease would probably have been fine. Didn't find any serious/noticeable wear, but their wasn't a lot of grease either (probably never was), particularly in the bottom bearing which is most exposed to road spray. All I can say is I won't be waiting 12K miles to do it next time, it's a fairly easy job and is thus probably worth doing every 6K. Must get round to do the steering head next...