“A study by the University of California, Riverside’s College of Engineering Center for Environmental Research and Technology (CE-CERT) and Southern California Gas Co. (SoCalGas) demonstrated that the 11.9-liter engine achieved California’s lowest smog-forming emissions standard and maintained low emissions in all types of driving. The engine is the only heavy-duty engine in the category to exceed the California Air Resources Board (CARB) standards.”
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