Ray,
I believe that it is 0% for sulfur.
I believe there should be no problem. The low sulfur is avalable in Europe right now and they have tested several Mercedes and VW products with flying colors. If anything these diesels should run better with a purer cleaner fuel (this is just a guess but from the results of Flitering I would think this is a good guess)
Also, the University of South Florida runs biodiesel in all their diesel equipment. They claim a cost about about 10 cents more per gal but a better running and more environmentally friendly engine. I attend school there and would if people were interested talk to the Transportation Director and get some info on their findings. P.S. They run 6.5L Turbo diesels, Duramaxes, Cat, cummins and various small diesels.
Lenny