Emissions and Environmental Impact: 6.7L vs 5.9L

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2026-03-13 09:47:36 -

Another critical aspect of how the 6.7L Cummins Different from the 5.9L is environmental compliance. The 5.9L engines, particularly pre-2007 models, were relatively simple and lacked advanced emissions controls. While they delivered reliable power, they produced more particulate matter and nitrogen oxides (NOx) due to minimal exhaust aftertreatment. The 6.7L Cummins, however, was designed...

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