Diesel Engine Advantages

The Benefits of Diesel Engines

Diesel Engines are More Efficient Than Gasoline Engines

Contributing Factors:

- Diesel fuel contains 15% more energy per volumetric unit than gasoline; diesel fuel is denser.

- Diesel engines produce less waste heat through the exhaust system, meaning more heat energy is being converted into mechanical energy in a diesel engine

than a gas engine.

- Diesels produce more torque and do so at lower operating speeds, increasing efficiency.

- While a gas engine operates at peak efficiency at a stoichiometric 14.7:1 air to fuel ratio, a diesel engine can operate efficiently over a broad range of air to fuel ratios. Running a leaner air to fuel ratio at idle and low speed conditions allows a diesel to save even more fuel.

- A diesel engine can be expected to achieve 20-30% better fuel economy than a gasoline engine.


Diesel Engines Cost Less to Maintain

Contributing Factors:

- Lack of electronic ignition and spark plugs; diesel engines are compression ignition engines.

- Longer service intervals than gasoline engines. Diesel engines do not compress fuel in the cylinders during the compression stroke, since fuel is injected at the top of the compression stroke and is instantly ignited. This eliminates the effects of harmful blow by found in gasoline engines, where fuel is compressed in the cylinder and small amounts are forced past the piston rings and into the crankcase, contaminating the engine oil.

- Diesel engines run longer than gas engines before requiring major repairs or an engine overhaul.

- Diesel fuel provides lubrication to the fuel system, extending the life of fuel system components.


Longevity - Diesel Engines Last Longer

Contributing Factors:

- Diesel engines are engineered robust and extremely strong in order to withstand high combustion pressures and torque loads. Larger, stronger engine components attribute to longer engine life.

- Diesel engines operate at lower combustion temperatures.

- Blow by is eliminated, meaning diesel fuel will not contaminate engine oil.

- Diesel engines operate a lower RPM, which increases engine life.


Diesel Engines Produce Peak Torque at Low RPMs

Diesel engines produce more torque than an equivalent gasoline engine, and do so at lower RPMs. Not only does this contribute to improved fuel economy, but makes the diesel engine the perfect towing machine. High torque output at low RPMs is why diesels are the preferred engine for construction, agriculture, and towing applications.


Diesel Engines Produce Emit Less CO2

Diesel engines produce very small amounts of carbon dioxide (CO2), a harmful greenhouse gas that has been proven to contribute to global warming.





















































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