What can be used to improve fuel atomization in a fuel system?

Improving fuel atomization is critical for achieving efficient combustion in an engine. One effective way to enhance this process is through the use of fuel additives. These additives can reduce the surface tension of the fuel, making it easier for the fuel to be broken into smaller droplets during the injection process. Smaller droplets promote better mixing with air, leading to more complete combustion and improved engine performance.

While other options might influence various aspects of the fuel system or engine performance, they do not specifically address the atomization process. High viscosity fuel tends to hinder atomization as it does not evaporate as easily compared to lower viscosity fuels. Cylinder head modifications may improve airflow and combustion chamber design but do not directly enhance fuel atomization. Upgrading the fuel pump can increase fuel delivery and pressure, but without the right atomization characteristics, the fuel may not interact effectively with the air. Therefore, the use of fuel additives stands out as a targeted solution to improve fuel atomization specifically.