lubing leveling jacks

I enjoyed the history lesson. Always wondered how it was named.

Powerwashing is a good idea. I'll remember to do that next time I do the deck.

WD-40 stands for Warter Displacement, the number is the 40th time that the formula was redone to obtain the correct or wanted results, and over time it creates a gray sticky film that atracts dirt, it was created for the U.S.Navy to guess what? "displace water", it is not a lubricant use the silicone, I use dry graffite on my jacks and once a year I power wash them, 12 years and no problems.

navegator

I use Silicone spray on the shafts on our Big Foot systems before retracting.

thanks for the info.

I will be using the silicon.

No one has attempted to answer your question, so I'll try and help by sharing what little I've learned.

I have a 20 year old HWH system that works great. I've lubricated the jacks with silicone spray (not WD-40)for over 10 years. My understanding is the WD-40 will react with the seals somehow, but I don't recall where I learned that warning. Apparently the silicone spray hasn't had any effect on my HWH system.

White grease is probably a very good lubricant, but may attract dust and dirt. I don't know about dry silicon.