Quote:
Originally Posted by inamik75
Lotus, what is the Sulfur content of US diesel? Is it 15ppm, 50ppm, or 500ppm?
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The regulation for all US states for passenger cars has been 15ppm (termed ULSD) since 2007. The "pump" ULSD is a "clear" fuel. There has been a waver for off-road and industrial equipment which allowed the use of 500ppm fuel, but that expires in 2011. That fuel must be dyed bright red (for sulphur content and/or taxing purposes) and is almost non-existent now.