The following links contain some excellent info concerning the ULSD (Ultra Low Sulfur Diesel) that becomes mandatory this October 15th.

Heavy-Duty Highway Diesel Program EPA document.

What is Clean Diesel Fuel? DieselForum.org document.

ULSD FAQ Clean-Diesel.org Frequently Asked Questions.
According the Clean-Diesel.org, the mandated ULSD will receive lubricity and corrosion additives prior to its distribution and retail sale, which is said to produce fuel qualities equal to what we have available now.