Interesting.
I've always used Castrol LMM for chassis lubrication, and that involves the uni's.
So for nearly thirty years now I've pumped an NLGI #2, 3% MoS2 fortified Li complex grease into every universal joint I've serviced without having to replace any for bearing wear (yet) and some of those joints have had upwards of 500,000km.
The current longest living ones are at 320,000km.
It was some years back that someone on here warned against MoS2 in unis specifically, their experience was a large mining operation where they had wholesale universal joint failures after they specified a moly fortified grease for maintenace.
It had bitten them on the arse big time.
This surprised a few of us here, and for whatever reason it still rattles around in my head (I don't like doing things wrong
) so I thought I'd bring it back up to see what experiences people have had.
Could it be a case of the 3% additive level sneaks by, yet the CAT/mining specced 5% is a touch too much for this application ?
Thanks for the feedback.