Diesel fuel is one of the most efficient and energy dense fuels available today. They deliver a higher compression ratio and do not need to burn as much fuel to achieve the same amount of power as in a gasoline engine.
Torque and Towing
Diesel trucks often generate significantly more torque than their gas-powered counterparts. This means they can tow heavier loads when compared to gas-powered engines.
Diesel engines do not us spark plugs. It intakes the air and compresses it, then injects the fuel directly into the combustion chamber. It is the heat of the compressed air that lights the fuel in a diesel engine.
Diesels have no high voltage electrical ignition system, resulting in high reliability and easy adaptation to damp environments. The absence of coils, spark plug wires, etc., also eliminates a source of radio frequency emissions which can interfere with navigation and communication equipment, which is especially important in marine and aircraft applications.
Diesel engines can accept super- or turbocharging pressure without any natural limit. Constrained only by the design and operating limits of engine components, such as pressure, speed and load. This is unlike petrol engines, which inevitably suffer detonation at higher pressure if engine tuning and/or fuel octane adjustments are not made to compensate.