Where did you read it can damage the engine? On a forum, someones opinion?
All those additives do it provide additional lubrication and centane boost. I hardly think that will hurt anything. At the end of the day the 3.0 is a diesel engine, just like the Cummins, 6.7 PS, etc. Its just smaller displacement. My opinion is you will be fine. I just Power Service every month or so when I think about it.
2018 Ford F-150 King Ranch 3.0L Power Stroke 4x4 | Icon 2.5 Front & 2.0 Rear, Toyo AT II 295/60R20, 3" ProComp Rear Block, S&B Dry CAI, LineX & BakFlip MX4, BuiltRight Seat Release | ForScan Mods: Disable Double Honk, 2x Panic, DPF Full %, Digital Temps Above Gauges, A.S.S Disabled