I use WD40 Specialist Dry Lube with PTFE. That doesn't make me right though.
I do spray degreaser on it occasionally and start over with the lube.
To me it's kinda like a traditonal hitch ball. Too much grease is too much and not enough is not enough. It just needs a little on the ball. I spray it when I think about it.
Don't over think it.
You know the rule..grease attracts dirt and dirt produces friction.
edit add: I just had to buy a new lock pin for the hitch. I got a new style pinbox hitch with the holes for safety chains. My original was the old style with no provision for chains. So with apparently too much time on my hands I moved the "add a links" that I hook on to to the more rearward holes. I was thinking...that's 6" less that I have to stretch out on the tailgate to hook up the chains. Well the safety chains got tangled in the spring loaded safety pin and bent it. PullRite charged about $24 for a new pin. I should get it this week.
