Greasing LCI SuperLube Axles

Huntindog wrote:

AMG1978 wrote:
2016 Forest River Stealth WA2916 Toy Hauler.

I have towed total 3500 miles in the 2 years I’ve owned it. I decided to follow the LCI video (https://m.youtube.com/watch?v=s34pBejcQn0) and grease these bad boys up.

I was planning to add grease until the old grease came out. I was surprised how much grease it took. Almost 1/3 of a tube before I saw any coming out. I then went to about 1/2 totalto squeeze out some old grease. I wiped it all clean and repeated the other 4.

Is this typical? I expected a few pumps thinking that they’d have more in them.

Also, I used Lucas Oil - Red & Tacky #2. It doesn’t say RV or trailer but it has a high drop point and good reviews. That sound ok?
Lucas Oil 10005 Red 'N' Tacky Grease - 14 oz. https://www.amazon.com/dp/B000ARPVO8/ref=cm_sw_r_cp_api_eJq7zbZKNV5RV

Here is the facts on how this works.

The zerk feeds a hole that will attempt to grease the inner bearing. How well this will work depends on the condition of the seal/hub interface, and the skill of the person doing it.
He needs to slowly turn the wheel while steadyling pumping the grease... It is working blind as you cannot see what is really going on in there. Is the fresh grease getting evenly distributed in the bearing? Or are spots being missed/skipped? Is the seal really in good shape? or is grease seeping past it onto the brakes?
One simply cannot be sure. All seals age and leak at some point. Sometimes a brand new seal is nicked during installation... Without superman vision, one cannot know.

But the potential problems don't stop there. In order to grease the outer bearing, the grease must travel thru the inner bearing, and the hub cavity to the inside of the outer bearing. This takes a considerable amount of grease... Several tubes each time for a dual axle TT... That's right EACH TIME... The video on Dexters (Both the Dexter and Lippert systems work the same) site is misleading. The dirty grease that they show exiting the hub is only from the outer bearing. The dirty grease from the larger inner bearing is still in there some where.... Some of it may have even made it to the inside of the outer bearing!!
Without xray vision, one cannot know exactly where it is... So one must keep pumping and pumping and pumping,, until a second section of dirty grease emerges. Even then one cannot know if all the dirty grease is purged. It is a long trip for the grease, and it probably will not travel evenly around the hub..
With all of the pumping that must be done, a compromised seal will likely fail greasing the brakes... But hey, I hear that well greased brakes never wear out.:B

So you see it is not as simple as the marketing makes it out to be.

Now knowing all of the facts, if one still wants to use this "feature" I wish them well.

Good point!
I had never even thought about the point of having to flush ALL the grease out every time. Otherwise your just passing the used grease from the back bearings to the front. By the time any new grease gets anywhere it's diluted and used.
The only good use for these things is to keep water out on boat trailers.
Even then, it should be taken apart and replaced regularly.