Hitch grease brand recommendation

[SummitPond]

What brand/type of hitch grease do you use for your bumper pull?

I've been using motorcycle chain lube (at the recommendation of my first RV dealer) with reasonable satisfaction, but recently have noticed some spalling on top of the hitch ball with my new trailer/load equalization hitch (I didn't have load equalization with the old trailer, again at the recommendation of the dealer). I don't know if this is normal or shows the need for grease versus the chain lube.

Thanks for you help.