Can a Car Run on Kerosene?

Kerosene, a petroleum distillate, is commonly used for various purposes such as heating, lighting, and aviation. However, when it comes to powering automobiles, kerosene is not a suitable fuel option. In this article, we will explore the reasons why cars do not use kerosene as fuel and the challenges associated with running a car on kerosene.

Fuel Characteristics

Kerosene is a petroleum distillate that undergoes less refining compared to gasoline. It shares similar characteristics with diesel fuel, including a higher flashpoint (100-162°F) in comparison to gasoline (-40°F). This means that kerosene requires more heat to vaporize and form a combustible mixture compared to gasoline.

Fuel Vaporization

Efficient combustion in internal combustion engines relies on the proper vaporization of the fuel. Gasoline engines are specifically designed to atomize gasoline, not vaporize kerosene. The different properties of kerosene, such as its higher flashpoint and lower volatility, make it challenging for a gasoline engine to effectively vaporize kerosene. This results in inefficient combustion and reduced engine performance.

Preignition and Octane Rating

Kerosene and diesel have low octane ratings of around 25, which indicates their resistance to preignition. Preignition occurs when the fuel-air mixture ignites prematurely in the combustion chamber, leading to engine knocking and potential damage. Gasoline engines require a higher octane rating to prevent preignition. Attempting to use kerosene in a gasoline engine increases the risk of preignition. Lowering the compression ratio or using anti-detonants can help mitigate this issue, but it may still affect engine performance.

Engine Modifications

Converting a gasoline engine to run on kerosene would necessitate significant modifications. Fuel vaporization methods, such as the application of heat, may need to be implemented to ensure proper combustion. It is worth noting that some antique engines and small engines were originally designed to run on kerosene. However, modern automotive engines are optimized for gasoline and may not be compatible with kerosene without substantial modifications.

In conclusion, using kerosene as a fuel for cars is not practical due to its different characteristics and challenges associated with fuel vaporization, preignition, and engine compatibility. Gasoline engines are specifically designed to work with gasoline, and attempting to run a car on kerosene would require significant modifications that may not be feasible or cost-effective.

Sources:
1. “Why is kerosene not used in cars?” – BYJU’S
2. “Why don’t cars use kerosene (and engines optimized for kerosene)?” – Motor Vehicle Maintenance & Repair Stack Exchange
3. “Running Kerosene in a Gasoline Engine” – SmokStak

FAQs

Can I use kerosene as fuel in my car?

No, using kerosene as fuel in a car is not recommended. Kerosene has different characteristics and properties compared to gasoline, which make it unsuitable for use in a standard car engine.

What are the main differences between kerosene and gasoline?

Kerosene is a petroleum distillate that is less refined than gasoline. It has a higher flashpoint, meaning it requires more heat to vaporize compared to gasoline. Additionally, kerosene shares more similarities with diesel fuel in terms of its characteristics.

Why can’t cars run on kerosene without modifications?

Cars are designed to run on gasoline, and their engines are optimized for the specific properties of gasoline. Kerosene requires different conditions for proper combustion, such as higher heat for vaporization. Running a car on kerosene would require significant modifications to the engine to ensure efficient and safe operation.

What happens if I use kerosene in a gasoline engine?



Using kerosene in a gasoline engine can result in inefficient combustion, reduced engine performance, and potential damage. Kerosene requires higher temperatures to vaporize, and its lower octane rating makes it more prone to preignition, which can lead to knocking and engine damage.

Are there any engines that can run on kerosene?

While modern car engines are not designed to run on kerosene, there are some antique engines and small engines that were originally designed to run on kerosene. These engines have specific modifications and features that allow them to utilize kerosene as fuel.

Can I convert my gasoline car to run on kerosene?

Converting a gasoline car to run on kerosene would require significant modifications to the engine and fuel system. It is not a simple or common conversion, and it may not be feasible or cost-effective for most car owners.

What are the risks of using kerosene in a gasoline engine?

Using kerosene in a gasoline engine can lead to poor engine performance, increased fuel consumption, and potential damage to the engine. The differences in fuel properties and combustion characteristics can negatively impact the engine’s efficiency and durability.

Are there any alternative fuel options for cars?



Yes, there are alternative fuel options available for cars, such as ethanol, biodiesel, and electric power. These alternative fuels are designed to be compatible with specific engines or can be used in vehicles equipped with alternative fuel systems.