Diesel engines and gasoline engines ultimately do the same thing; they power your vehicle. The majority of components internally and native to the engines itself are about the same, though they are built to different specifications. Generally, a diesel engine has fewer pasts, fewer and less complicated mechanical operations. The goal of both types of engine is to propel your vehicle comfortably, powerfully and quietly. They achieve the goal and to the work in different methods, and they burn different fuels.