I've seen the referenced document also.
I did NOT have this presented to me nor did I sign one when I purchased my 2011 6.7L diesel Ford.
Perhaps this is something Ford started after my purchase. Unknown to me.
My biggest concern with the Ford 6.7L is the HPFP Bosch 4.2. It has been described as "delicate" by other manufacturers using various versions of this same pump. (IE there are both single and twin cylinder versions used today, CP 4.1 single and CP 4.2 twin cylinder pumps).
But, this concern is tempered by the so far shown history of these pumps being 97 percent trouble free. However, if one is unlucky enough to be within the 3 percent to have problems, then you do have a very major problem.
Don't be complacent with today's diesel fuel, no matter which brand of diesel you choose or drive. It is an extremely dry fuel in the United States, with lubricity standards 25 percent lower than what used to exist in the old, high sulfur fuel once made. Old sulfur fuel in the 420 wear scar rating, current US ULSD is at a 520 wear scar rating.
And, considering Bosch designed the fuel pump to work best at European and Canadian standards of a 460 wear scar rating then it becomes obvious more lubricity is needed to make these pumps run at optimal conditions. After all, the only lubrication these pumps get is from the fuel.
So I do use the Ford lubricity additive in each tank, Ford part number PM-22A.
Yes, I realize neither Ford or GM (which now use this very same pump in the Duramax) say that one absolutely has to use a lubricity additive.
But tell me, how many of these trucks would they sell if they actually told potential customers that a major problem existed with the US fuel supply and to get best results, one better use a lubricity additive?????
They'd scare off more than they could sell.