Which engine type typically has a larger displacement: gasoline engine or diesel engine?

The answer is that a diesel engine typically has a larger displacement compared to a gasoline engine. Displacement, which refers to the total volume of all the cylinders in an engine, plays a crucial role in defining the engine's capacity to produce power. Diesel engines generally have larger displacement to optimize efficiency and torque, taking advantage of their different combustion characteristics.

Diesel engines operate at lower RPMs and higher compression ratios, and they tend to produce more torque for heavy-duty applications, which is often necessary in commercial vehicles and machinery. The larger displacement in these engines allows them to achieve the power and efficiency required without needing to rev as high as gasoline engines, which often have smaller displacement but operate at higher RPMs for power delivery.

Other options like the gasoline engine having larger displacement or both being the same volume do not accurately reflect the typical configurations and uses of these engines. The idea that it depends on the model is less relevant when discussing the general characteristics of diesel and gasoline engines compared to their standard design trends.