ULSD has to meet a lubricity requirement, an additive has to be added at the delivery point just prior to loading on a delivery truck. I really don't think it is a concern if you use one of the many additives that are out there.
Just my .02

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Habits I support
95 E300 D 220,000 & counting (I think I'll call him Fritz)
02 Tahoe (Momma's ride)
98 GMC Sierra 120,000
57 Chevy Nomad (bought in '69)