Diesel is more effective than gasoline
Diesel fuel has a higher density than gasoline, with approximately 15% more energy per unit volume. This high thermal efficiency means that generating the same amount of power requires less fuel, which in turn leads to less emissions. The efficiency of gasoline engines is about 20% (which means only 20% of the combustion fuel is used to drive the engine), while the efficiency of diesel engines is about 40%. Most fuel is lost due to friction, noise, heat, and other engine functions. Although diesel is sometimes more expensive per liter than gasoline, the fact that you need less fuel may mean that diesel is a highly cost-effective solution in the long run.
Diesel generators require less maintenance
Diesel generators do not have spark plugs and carburetors, which means there are fewer items that need to be inspected and replaced during regular maintenance. Diesel engines do not ignite fuel through spark plugs, but rather generate combustion by injecting fuel into the cylinder and compressing air to a temperature sufficient to ignite the fuel. The absence of a carburetor means that engine detonation issues will not occur before entering the cylinder due to incorrect air and fuel mixture ratios.
Diesel fuel is more stable
Diesel has a higher flash point than gasoline, which means it is less likely to be accidentally ignited by sparks or flames. Its boiling point is also higher than water. Diesel is a heavy and dense liquid that evaporates slowly. At gas stations, the price of diesel is also much more stable, with fluctuations as large as gasoline.
Diesel engines are more sturdy and durable
Due to the fact that combustion in diesel engines occurs at extremely high compression and temperature, the manufacturing of engines is more robust and durable. This is necessary to withstand the forces generated during the combustion process. Higher quality components and better construction methods also help extend the lifespan of generators.
The fuel system is self-lubricating
Due to its high density and oil like consistency, diesel will self lubricate the fuel system in the engine, including the injection pump and injectors.
Greater torque at low speeds
Due to the higher compression rate required for combustion in diesel engines, they generate greater torque at low speeds compared to gasoline engines.