Jacks down during winter storage?

You don't mention if it is an air suspension (Bags) or not.
But my 2 cents. Air bag suspension, I have friends who place blocks under the rail before they dump the air. In this way, as the rig settle down, the rail sits on the blocks taking the load off of the tires. By the way, it only takes 1/4 inch to remove the load.

Me, when we had the S&B unit, extend the jacks down because we would open the slides. And besides the levelers rams are made from stainless steel which does not rust or corrode.

robatthelake wrote:
I have never seen Stainless Steel Hydraulic Rams Rust,even in the Salt air environment at a Mexican Beach!

No, but the first time it's retracted after several months of crud accumulating on the cylinder, the cylinder, rod, and/or wiper seal is just about sure to be destroyed.

I have never seen Stainless Steel Hydraulic Rams Rust,even in the Salt air environment at a Mexican Beach!

It would seem to me that the jacks are to help stabilize.......no need in storage.

Leave mine extended and spray rams with silicon. Takes the weight off the tires.

Let's add x3 on my part. I know that there are a lot of RVers that use their auto levers through the storage months. I prefer that my unit be close to level while in storage even if it's just for a short period of time and as mentioned above, I don't like having the finished metal exposed to the elements. My "free" parking spot here at the HOA is not level from side to side so I use the old style orange interlocking plastic leveling blocks on the low side. Does a reasonable job as the spot is very level from back to front.

I also keep my jacks retracted.
If you leave them extended, I believe you should spray them with silicone

Mine stay up. I don't want the exposed hydraulic cylinders corroding. I do put some plywood under the tires however.