DU bushings: recommended grease?

[JohnDB]

The front wheel supports of the M4500DT use 50mm ID DU bushings ( PTFE composite plain bearings, dry bearings). When I dismantled them to service the axle, I found that the bores/mating shafts were lubricated, looked like moly grease or similar dark colour and plenty of it, not running dry. The bushings aren't greasable, and there are no signs that the axle has been apart previously so I assume that it was done in the factory. The WSM doesn't say anything about lubricating these and the shaft on reassembly. All the info I can find about these bearings doesn't comment on greasing (OK, so they are advertised as dry bearings). The PTFE layer on one of the bushings was just starting to delaminate, after about 5000 hours/nearly 50 years hours in use. Everything else in that area was in good condition, so I'm replacing the bushings.

Is there a recommended grease for these types of bearings? Teflon grease? Moly grease?

Thanks in advance.

 

[North Idaho Wolfman]

You really don't need to lube them with anything, but I use a sparring amount of PTFE grease when I install them.
It probably just works to make me feel all warm and fuzzy inside, and that's probably it.