Maybe a little help to get you started...
I am also new here and my suggestions are from a neighbor up the street that has been going RVing for a long time and is a salesperson for rvs. If you have hydraulic drive on your slide I cannot help you. For the gear driven just use a dry lube on the gear teeth. Do not go overboard with it-it’s a “dry” lube. Too much and it will attract and hold all kinds of stuff you do not want in there. Look at the bars the “teeth” are mounted on and if you see any rust clean it off and repaint it. The seals around the slide could use treatment also. I used a foam spray by ProtectAll that you literally spray on and then wipe down on both sides of the rubber.
I just noticed that the dry lube I used is also by Protect-all. These were the neighbors suggestion but there are many different brands out there.
When you close the slid for the winter make sure it is in good contact with the exterior wall all the way around.
That’s what I have done for the slides, now time to finish the rest of it!
2016 Microlite 21DS-Sold
2019 Rockwood 2707WS
2008 F150 XLT 4X4 Factory Tow Pkg
2 Golden Retriever mix rescues
My favorite travelling companion, my wife