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      03-29-2011, 09:09 AM   #24
Lotus7
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Quote:
Originally Posted by inamik75 View Post
Lotus, what is the Sulfur content of US diesel? Is it 15ppm, 50ppm, or 500ppm?
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.
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