This is the second time the sulfur content has been changed in diesel. Back in around 97 or so the EPA made the first change. Back then there were reports of 18 wheelers having had to get their injection pumps rebuilt. But the Bosch in line injection pumps did not have any problems. The rubber hoses did start to leak. I had to replace all the return lines as well as the fuel tank lines. It could have been due to age. I have not had to replace anything as of yet this time.
It does concern me about the ULSD's lubrication effect. The sulfur does provide a certain amount of lubrication and now that the supfer had been reduced will it effect pumps parts that used the diesel fuel for lubrication? The pump is internally lubricated by oil. But some parts depend on the diesel fuel. I guess we'll see.

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car