Originally Posted by davel1971
Since the grease thins with heat, and is under pressure with greaseable hubs....
You are half right (as you stated later in the thread, EZLubes aren't pressurized). But you are correct that grease heats up and expands. I was an auto mechanic "back in the day" and learned as an apprentice that it is important to leave the center of the hub free of grase to allow for expansion and heat dissipation.
Conscientious users of the EZLube still advocate pulling and inspecting periodically. So why waste all that grease filling up a hub that shouldn't be filled to begin with?
And the debate continues ...