In addition to what Steve said, spraying the heck out of the tracks with Silicone spray helps as well. I have had my old MH where the slides have been cruded up with road dirt and sprayed the heck out of the tracks with Parts & Brake cleaner, then silicone spray.
Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold