"Federal regulations require that all diesel fuel pumps be labeled to specify the type of fuel dispensed"
"But starting Dec. 1, 2010, only ULSD will be available for on-highway use."
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Energy content
In general, the processing required to reduce sulfur to 15 ppm also reduces the aromatics content and density of diesel fuel, resulting in a reduction in energy content (BTU/gal). A 1% reduction is expected, which may affect mpg."
http://fleetowner.com/mag/fleet_abcs_ulsd/
So, yes, pumps must be labeled. Yes, it does appear that I have a pump that offers Low Sulfur Diesel based on the mandate requirements. And, yes, there is less power content in ULSD vs LSD.
Linear Mode
