Someone posted a UOA of it
and it had really good results in an Ecoboost 3.5.
Looks like a good dual rated oil.
This oil is same price as regular Premium Blue. Tempted to do a VOA on it since we dont know what 8600 ES means yet
I think it has replaced regular Premium Blue 15W40, it is approved under certain conditions for a 10K mile drain extension by Cummins. The ES usually means "extended service" in Cummins/Fleetguard-"speak".
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)