As an expert in the field of mechanical engineering with a focus on internal combustion engines, I'd like to provide some insights into the use of kerosene in a diesel engine.

Diesel engines are designed to operate on diesel fuel, which is a distillate of crude oil and has specific properties that make it suitable for compression ignition engines. Kerosene, on the other hand, is a type of fuel that is more commonly used in jet engines and some types of heaters. It is also a distillate of crude oil but has different characteristics compared to diesel fuel.

Firstly, it's important to understand that diesel fuel is formulated to have a specific cetane number, which is a measure of the fuel's ignition quality. A higher cetane number indicates a fuel that ignites more readily under compression, which is crucial for diesel engines. Kerosene typically has a lower cetane number than diesel, which means it ignites less readily and could lead to poor engine performance or even damage over time.

Secondly, diesel fuel has a higher flash point and a lower energy content than kerosene. The flash point is the temperature at which the fuel gives off enough vapors to ignite in the presence of an ignition source. A higher flash point is safer in terms of handling and storage, as it is less likely to ignite accidentally. The lower energy content of diesel fuel means that it produces less energy per unit of volume when burned, which is balanced by the engine's design to provide optimal performance.

Thirdly, kerosene is known to have a higher lubricity than diesel fuel. While this might seem like a positive attribute, excessive lubricity can lead to issues such as gumming in the fuel system, which can cause blockages and affect the engine's ability to atomize the fuel properly. This can result in poor combustion and reduced power output.

Additionally, kerosene burns at a cooler temperature than diesel fuel. While this might seem beneficial in terms of reducing engine heat, it can actually lead to a reduction in power and lower fuel efficiency. Diesel engines are designed to operate at a specific temperature range, and deviations from this can lead to decreased performance and potential damage.

There are also environmental considerations. Using kerosene in a diesel engine can lead to increased emissions of certain pollutants due to the differences in combustion characteristics. This is not only harmful to the environment but could also lead to the engine failing emissions tests if required.

In cold weather conditions, it's true that some diesel owners may be tempted to use kerosene because it gels less easily than diesel fuel. However, this should be done with caution and ideally only as a temporary solution. The potential long-term effects on the engine and the risks associated with using a fuel that is not specifically designed for diesel engines far outweigh the short-term benefits.

In conclusion, while it may be technically possible to run a diesel engine on kerosene, it is not recommended due to the differences in fuel properties that can lead to decreased performance, increased emissions, and potential engine damage. It is always best to use the fuel that the engine manufacturer recommends to ensure optimal performance and longevity of the engine.

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Kerosene doesn't gel as easily in the cold as diesel fuel does, so some diesel owners run it in their trucks during the winter and diesel during the summer. Since kerosene burns cooler than diesel, it can reduce the power of your engine and lower your gas mileage.Dec 2, 2015read more >>