I use whatever I happen to pick up out of the drawer in the bay. However, I prefer the Kwikee lube, a slide out "dry lube," or any other substance that will not pick up and hold all the road grime that is thrown up against the steps.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2015 Winnebago Tour 42QD - 2020 Lincoln Nautilus Reserve (TOAD)
(RVM-14) It is what it is, and then it is what you make of it.