Grease for hub bearings? (NLGI grade) I know this question has been asked many times on here and other bike forums.
I'm struggling to find a proper answer. 

The NLGI basically refers to the thickness of a grease.

I have some lithium based grease on hand and the NLGI grade is 3 (consistency of vegetable shortening), so thicker than grade 2 (consistency of peanut butter).

Would a grade 3 grease be fine to use for bicycle hubs?

Thank you for any help!
NLGI 3 is harder than optimal. Shouldn't create a problem, but NLGI 2 should provide better lubrication and still be hard enough to resist being pushed and washed out of the bearings (all else being equal).

Hubs are spinning when used, and at relatively low speed, so no need to worry about lubricant starvation. The harder the grease and the more viscous the base oil, the more chance of lubricant starvation, but, like said, since bicycle hubs see very low rotating speeds (and loads for that matter), the differences are mostly "academic" in my knowledge and experience.