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 September 28, 2015 - 8:00 AM EDT
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Greyrock Highlights Significant Reductions in Diesel Emissions using its Ultra-Premium, Zero Sulfur Diesel

SACRAMENTO, Calif., Sept. 28, 2015 /PRNewswire/ -- Greyrock Energy has announced performance results from the testing of the Company's ultra-premium, zero sulfur diesel fuel.  Greyrock's fuels are produced from natural gas, natural gas liquids, flare gas and other waste gases using the Company's patented Direct Fuel Production™ (DFP) systems.        

Greyrock's diesel fuel meets existing ASTM standards, but also has premium properties including zero sulfur, no aromatics, high cetane and excellent lubricity.  Greyrock diesel can also be used as a blendstock to upgrade the quality of petroleum-based diesel fuels.

"When the Greyrock fuel is used in new diesel engines with advanced control systems, reductions in particulates, carbon monoxide, hydrocarbons and nitrogen oxide emissions can be achieved," said Dr. Dennis Schuetzle, Greyrock's Chief Technology Officer.  "These pollutants can be reduced further when the Greyrock fuel is used in older light-duty and heavy-duty diesel vehicles with less efficient emission control systems; in off-road diesel vehicles such as tractors and bulldozers; in stationary diesel generators; and in diesel powered vessels." 

In addition, use of Greyrock's diesel fuels can reduce greenhouse gas emissions.   Greyrock's diesel engine emissions studies have shown that CO2 and methane (CH4) emissions, both greenhouse gases, are reduced in new diesel vehicles by up to 3.5% and 9%, respectively, when compared to petroleum-based diesel fuels.    

For more information contact Greyrock at 1-800-729-9350 Ext. 1 or e-mail

About Greyrock Energy

Greyrock Energy enables natural gas producers and midstream companies to take full advantage of the industry's unprecedented levels of shale gas production by transforming natural gas potential worldwide with commercially available, small-scale gas-to-liquid (GTL) systems.  Now, Greyrock partners can profit by transforming abundant, low-cost natural gas into higher-value transportation fuels without the costly, large-scale processes larger operators must support with traditional GTL solutions. This revolutionary technology permits more flexible deployment of small-scale GTL processing systems. Founded in 2006 and headquartered in Sacramento, CA, Greyrock Energy's groundbreaking GTL process converts natural gas into pump-ready transportation fuels.  For more information, please visit


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SOURCE Greyrock Energy

Source: PR Newswire (September 28, 2015 - 8:00 AM EDT)

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