As a subject matter expert in the field of mechanical engineering with a focus on internal combustion engines, I'd like to address the question of whether kerosene can be used in a diesel engine. The use of kerosene in a diesel engine is a topic that requires careful consideration due to the differences in the properties of kerosene and diesel fuel.

Firstly, it is important to understand the fundamental differences between kerosene and diesel fuel. Kerosene, also known as paraffin oil, is a petroleum-based product that is typically used for heating or as a fuel for jet engines. Diesel fuel, on the other hand, is specifically formulated for use in diesel engines and has certain characteristics that make it suitable for this purpose.

One of the key differences is lubricity. Diesel fuel has a higher lubricity than kerosene, which means it can provide a protective layer that reduces friction and wear in the fuel system components. Kerosene, with its lower lubricity, can lead to increased wear on the fuel pumps and injectors, potentially causing them to fail prematurely. This is a significant concern because the fuel pump is a critical component that delivers fuel to the engine under high pressure.

Another consideration is the viscosity of the fuel. Diesel fuel has a higher viscosity, which contributes to its lubricating properties. Kerosene, being less viscous, may not provide the necessary lubrication for the fuel system, especially under the high pressures that diesel engines operate.

Additionally, the combustion characteristics of kerosene differ from those of diesel fuel. Kerosene has a higher flash point and a different energy content, which can affect the engine's performance and efficiency. Using kerosene in a diesel engine may result in incomplete combustion, leading to a buildup of carbon deposits and possible engine damage over time.

Furthermore, the cold flow properties of kerosene are generally not as good as those of diesel fuel. Diesel engines are designed to operate in a variety of temperatures, and diesel fuel is formulated to ensure that it remains liquid and flows freely even in cold conditions. Kerosene may not perform as well in cold weather, potentially leading to starting and operational issues.

It's also worth noting that using kerosene in a diesel engine can void the engine's warranty. Manufacturers typically specify the type of fuel that should be used in their engines, and deviating from these specifications can have legal and financial implications.

In conclusion, while it may be technically possible to run a diesel engine on kerosene in some cases, it is not recommended due to the potential for increased wear, reduced performance, and possible engine damage. It is always best to use the type of fuel that the engine manufacturer recommends to ensure optimal performance and longevity of the engine.

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Drier burn. The most common concern cited is the dry burn of kerosene that may damage fuel pumps. Kerosene has very little lubricity compared to #2 diesel. Without the lubricity, fuel pumps experience a lot of wear and may burn out when running on kerosene.Sep 28, 2015read more >>