Which cylinders do EGR gases come from on DD16 engines?

EGR (Exhaust Gas Recirculation) systems in DD16 engines are designed to recirculate exhaust gases back into the combustion process to reduce nitrogen oxide emissions. In DD16 engines, exhaust gases are drawn from all six cylinders rather than just specific ones. This means that the EGR system effectively utilizes the output from each cylinder to achieve a more efficient combustion process and meets emissions requirements. By taking gases from all six cylinders, the system can maximize the volume of EGR, ensuring that engine performance and emission control are optimized.

This approach helps to balance the EGR flow and maintain consistent engine operation, further contributing to improved fuel efficiency and reduced environmental impact. Thus, the choice indicating that EGR gases come from all six cylinders is accurate, reflecting the design and functionality of the DD16 engine's EGR system.