Liquid Wrench Dry Lube for Slideouts

[BigSur2]

Anybody have anything negative on this stuff? About to lube my slide rails. Went to Wally World. They had various dry lubes but the main ones were a Camco dry lube and a LW dry lube. The Camco - $9/bottle. The LW - $4/bottle. Just wanna make sure the extra $5 may have been worth it in the long run.

[2oldman]

My mfr recommends no lube at all. Are you talking about the big under-slide rails?