I had been told "never use silicone caulk" on a motorhome". I did do it, (took my time, cleaned it real well, applied the caulk and thought I solved the problem). They told me at the dealership that it wouldn't hold. They said that I should just pick it off the end, and it will zip right off.
I didn't believe them because of how careful I was when cleaning and applying it.
It did leak . I did what they said, and it did
zip right off.
They told me that you can use a high end automotive sealant on the sides, but never use it on flat roof surfaces (like the top of the slides). It may work for a little while, but eventually, it will leak.
My fault for not taking the advice of the people who know.