mitch5252 wrote:..For SCHWINTEK slide systems (I have no knowledge of the other type(s)) - you are NOT ever supposed to use anything but teflon lubricant (PTFE is another name for Teflon). Grease is bad - very bad - in that it attracts and holds on to dirt...(I got the very same advice on the sliding screen doors on my garage - ONLY PTFE lubricant)
Watch this video from Lippert (Schwintek):
https://www.youtube.com/watch?v=8KbVRFMo1Rg..
Mitch, there's a reference to a specific lubricant for the Schwintek slides and I don't remember what it is. I bought what they mention in the video from Amazon and then had our repair shop do the lube job, as I can't reach the top slide track without a ladder. I imagine that this lubricant would be good on other things, too. We used white lithium grease on our trailer's slide tracks because they were under the rig. We also used it on our stabilizers as well because they got so dirty.
While WD-40 is good for lots of stuff, out here in the dusty Southwest it's just not the best, especially for things exposed to the elements.
Laura