Diesel engines are often chosen for their excellent low-end power (high torque output) and long-term durability. One of the major differences between diesel and gasoline engines is how the fuel is delivered. Diesel fuel is injected through high-pressure rails directly into the combustion chamber of each cylinder. This is called direct injection and is monitored very closely to ensure the precise ratio of diesel fuel and air is injected for optimal combustion and maximum power.
While diesel engines have been around for a long time, engineers are constantly working to improve the fuel delivery technology of diesel engines. Why? The obvious reasons, actually – the results are more power, greater durability and cleaner emissions. Here are some of the major improvements that have been made…