Then it stands to reason that this is an area in need of researching, if the refining they are planning to do can be augmented at no great additional cost it might be worth pursuing, depending on the targeted buyers...off road users may take notice, such as locomotives etc, but i suspect they have plenty of not so ulsd available. There is a lot to consider, some good info on ulsd pros/cons etc can be had here http://www.clean-diesel.org/faqs.html
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