I just recently had all the nylon slide bushings replaced on my big slide at Winnebago in Forest City. The mechanics noted the waxy slide lube (applied by the previous owner) and said to just keep the slide mechanism clean and use no lube. They meticulously cleaned all that stuff off the mechanism.
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.