Quote:
Originally Posted by aklim
I have heard that the BTU does go down by that much. However, what I don't know is whether that is fact that has been proven by random samplings or just a theoretical guess? Have they included other factors like the lubricity agents that might be affecting something? That is what I don't know. Also, when refining it to that, is that a best case scenario with the best equipment or do they consider the state of the equipment that is generally being used?
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I work with people who are required to test every delivery of diesel before it is put in service. There is plenty of actual data on the heat rate of ULSD. In some cases, seal materials do have to be changed to prevent leaking. Each diesel engine manufacturer had it's own recommendations. I have not seen any significant problems.