Anythinggreasy, oily, or sticky will attract road dirt, grit, sand,etc. This combines to form a crude grinding compound. That's not the result you desire. I use dry Molybdenum spray on my jacks, stabilizers, slide mechanisms, etc. It applies wet, then the carrier dries, leaving an extreme pressure lubricant that is none of the things in the first sentence.
This dry lubricating film is long-lasting, waterproof, and reliable. A side benefit- it will stain your jacks flat black (and anything you spray).
2000 Winnebago Ultimate Freedom USQ40JD,
ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy