Why does the cummins smoke more than the powerstroke?

Cummins engines often produce more smoke than Powerstroke engines due to differences in fuel delivery and combustion characteristics. Cummins engines, particularly older models, tend to have higher fuel injection rates and less sophisticated emission controls, leading to incomplete combustion and increased smoke. Additionally, turbocharger designs and tuning differences can contribute to variations in exhaust emissions. Overall, the design and calibration of each engine play significant roles in their respective smoke output.