can i run diesel through hydraulic hose


Can I Run Diesel Through Hydraulic Hose?


When it comes to using hydraulic hoses, it is essential to understand their capabilities and limitations. Many individuals wonder if it is possible to run diesel through hydraulic hoses instead of using dedicated fuel hoses. In this article, we will explore this topic in detail to provide you with a clear understanding of whether or not it is safe and feasible to run diesel through hydraulic hoses.

1. Understanding Hydraulic Hoses:

Before delving into the question at hand, it is crucial to have a basic understanding of hydraulic hoses. These hoses are specifically designed to transfer fluid power, like hydraulic fluid, oil, or water, under high-pressure conditions. They are composed of multiple layers, including an inner tube, reinforcements, and an outer cover, ensuring durability and resistance to various operating conditions.

2. Is Diesel Compatible with Hydraulic Hoses?

One might assume that since both hydraulic fluid and diesel are liquids, they can be interchanged. However, it is important to note that diesel is not compatible with standard hydraulic hoses. Each fluid has unique properties and requirements, making them suitable for specific applications.

3. Properties of Diesel Fuel:

Diesel fuel, primarily used in diesel engines, possesses various characteristics that differentiate it from hydraulic fluid. Diesel fuel is more viscous, contains additives to improve combustion, and can be potentially harmful to the inner tube of hydraulic hoses. Therefore, hydraulic hoses are not designed to withstand the potential damage that can be caused by diesel fuel.

4. Compatibility Issues:

The primary concern with running diesel through hydraulic hoses is the compatibility issues that arise due to the differences in fluid properties. Diesel fuel can cause the rubber inner tube of hydraulic hoses to swell, soften, or degrade over time. This can lead to a loss of performance, leaks, and ultimately, failure of the hydraulic system.

5. Potential Damage:

Using hydraulic hoses with diesel fuel can lead to severe damage to the hoses and the whole hydraulic system. The swelling or softening of the inner tube can result in reduced flow capacity and diminished pressure resistance. Furthermore, the degraded inner tube may contaminate the hydraulic fluid, affecting the performance and lifespan of other hydraulic components.

6. Safety Concerns:

Another crucial aspect to consider is the safety implications of using hydraulic hoses for diesel fuel transfer. Hydraulic hoses are not designed to handle the high-temperature fluctuations and chemical properties of diesel fuel. This can result in leakage, which poses fire hazards and potential harm to personnel working with the hydraulic system.

7. Suitable Alternatives:

To ensure safe and efficient diesel transfer, it is recommended to use dedicated fuel hoses designed explicitly for this purpose. Fuel hoses are specifically engineered to handle the properties of diesel fuel, providing enhanced resistance to degradation, swelling, and fire hazards. Using dedicated fuel hoses ensures the longevity of both the hoses and the hydraulic system itself.

8. Importance of Regular Maintenance:

Regardless of the type of hose used, regular maintenance is crucial to ensure optimal performance and longevity of the hydraulic system. Regularly inspecting and replacing worn-out or damaged hoses, including fuel hoses, will minimize the chances of leakage, system failure, and potential accidents.


In conclusion, it is not advisable to run diesel through hydraulic hoses. The properties of diesel fuel, such as its viscosity and additives, can cause severe damage to the inner tube of hydraulic hoses, compromising their functionality and safety. It is crucial to use dedicated fuel hoses specifically designed to transfer diesel fuel safely and efficiently. By doing so and adhering to proper maintenance practices, you can ensure the longevity and reliability of your hydraulic system.


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