What are the common types of engines used in trucks and coaches?

The selection of diesel engines and gasoline engines as the common types of engines used in trucks and coaches is accurate due to their widespread application in the transportation industry. Diesel engines are particularly favored for their durability, fuel efficiency, and greater torque at lower RPMs, making them suitable for heavy-duty vehicles like trucks and buses. These engines can handle high loads and long distances, which are essential for commercial transport. Gasoline engines, while more prevalent in light-duty vehicles, also have their place in certain types of trucks and some coaches, especially those designed for passenger transport.

On the other hand, electric and hybrid engines, although gaining popularity, are not yet as common in the heavy truck and coach sectors compared to diesel and gasoline engines, primarily due to considerations around range, infrastructure, and power requirements. Similarly, nuclear and steam engines are largely outdated and not practical for modern vehicle designs. Hydraulic and pneumatic engines are used in specialized applications but are not classified as traditional powertrains suitable for typical vehicles on the road.

This context underscores why diesel and gasoline engines remain predominant in the industry for trucks and coaches.