Greaseless Fifth Wheel plates

I use the Teflon disc. Only one trailer.
I leave grease on . Add some when I grease kingpin, not as much.
You can't see my disc unless you look from behind plate under trailer.
I feel the grease keeps moisture getting trapped between plate/disc/trailer.

 

I was wondering if anyone used these. I had one 20 years ago when I started with my first truck. I really liked it.

When I got my disk 20 years ago (no I'm not still using it) i was told to make sure & not get grease on it. That it would wear it out because dirt & other things would get caught in the grease. Idk.

 

I just installed a complete Brand new Holland fifth wheel with slider. What caught my attention is, there is no grease nipples to grease the pivot points. How long will these bushing last ? Also, the slider has a different locking teeth. Is this a plus or minus ?

 

I hate that type of 5th wheel slide. What happens is stupid drivers (we don't even get to slip seat an assigned truck, it's what's available) drop, or even hook up at an angle and then slide. The 5th wheel has so much play in those teeth it will twist and pin itself at an angle. Take a large sledge beating on it to get it to release the pins so it will slide again.
Since it's your truck, simply don't try and slide while at an angle and you will be good.