jacks up or down

I have the Bigfoot levelers and the company says it is okay to store the jacks up or down since the shafts are stainless steel and don't rust. I always spray them well with a silicone spray as per manufacturer's recommendations.

Ours is stored in the drive with the jacks down to level it. We do spray the pistons with grease occasionally to help keep water off.

Our hydraulic cylinders do not rust. We have been full-time since 2011 and sit from 4-6 months at any one time with the jacks down/extended. We have been within a mile of salt water and that didn't happen. This is not true. I would say, consult your owners manual or see if there is an answer on your manufacturers website.

Maybe needed down if storage is in specially high wind locations.

Found myself inside an RV with 50-70 mph wind and I have to put mine down even on a temporary stop.

If they are hydraulic cylinders (can you see a shiny shaft extended when they are lowered?) then they should be stored in the closed/retracted position. Otherwise, rust will form on the shaft, and when retracted after storage, will damage the hydraulic seals.

It doesn't matter....they are leveling and stabilizing jacks. You don't need either if you aren't using it.