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 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"