August 2013 Torque - The New Cummins QSM12
 

August 2013 Torque - The New Cummins QSM12
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Meeting Tier 4 Emissions Without EGRWe are all affected in one way or another by the current stringent emissions regulations in the U.S. Diesel engines have been burdened with Band-Aid devices such as exhaust gas recirculation, particulate filters, oxidation catalysts, and urea-injection aftertreatments in an attempt to meet these tight standards. So when a company as well regarded as Cummins announces it has been able to produce a new engine that meets EPA Tier 4 Final emissions requirements—without the use of EGR—we had to take a closer look.



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