God aweful squeak / squeal when opening or closing main slide

[SaskCampers]

As the title says. Our living room slide squeals like a pig when moving in or out and is worse the further out the slide gets. I have put dry graphite lube on the slide rails and sprayed silicon lube anywhere where things turn or move and it is no better. Any ideas on where and what to spray to stop this noise as I am afraid we will get kicked out of campgrounds for scaring people

[The_Stuff]

lol spray everything you can think of i guess!

I was afraid my slides would be like that but they moved like normal. i was surprised after being out almost a full year!

[youroo]

What about the seals? Youroo!!

[SaskCampers]

Found it last night after having the DW try and wear out the slide switch and linear actuator from moving the slide back and forth and using just about every lubricant I had on the shelf. It was something in the linear actuator, and the only thing that worked to stop the noise was good old Fluid Film (IMO one of the best lubricants ever made and I use it on all my tractor stuff where there needs to be a film of lube) took several tries and wiping it down after I had it soaked and dripping while the DW moved the slide but after about 1/2 hour it finally stopped squealing.