
When it comes to automotive systems, choosing the right tubing for fuel and oil lines is crucial. Various materials are available in the market, each with its own advantages and disadvantages. For instance, copper is a popular choice for fuel and oil lines as it is long-lasting and easy to install, while nylon fuel lines are a more cost-effective alternative. Polyurethane tubing is also an excellent option as it offers great resistance to most gasolines, oils, and other petroleum-based compounds. Additionally, aluminum tubing is widely used for its ease of bending and cutting, but it may be challenging to get it perfectly straight. With each material having unique properties, it's important to consider the specific application and vehicle system before making a decision.
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What You'll Learn
- Polyurethane tubing is a good option for fuel and oil lines
- PVC tubing is oil-safe but make sure to get reinforced PVC
- Copper tubing is a popular choice for fuel and oil lines
- Aluminium tubing is another popular choice for fuel and oil lines
- Nylon fuel lines are a good alternative to steel gasoline lines

Polyurethane tubing is a good option for fuel and oil lines
Polyurethane tubing is a great option for fuel and oil lines due to its excellent resistance to chemicals and weathering characteristics. It is an ideal choice for fuel lines because of its exceptional resistance to most gasolines, oils, kerosene, and other petroleum-based chemicals. Polyurethane, also known as PUR tubing or hose, has two basic formulations: ester and ether. While water can degrade ester-based urethane, ether-based urethane exhibits superior hydrolytic stability, especially in humid environments, and better resists fungus growth.
Polyurethane tubing is flexible, resilient, and abrasion-resistant, making it a good choice for fuel and oil lines. It can be bonded using a high-tech process into straight or spiral configurations, allowing for the organisation of air, oil, water, and electrical needs in one complete, colour-coded package. Polyurethane tubing is also available in a two-layer construction with a PVC (polyvinyl chloride) / PU (polyurethane) outer layer and a PVC, PU, and NBR rubber compound mix inner layer. This type of tubing is suitable for the suction and pressurised transfer of oils, diesel oil, biodiesel, and AD Blue.
The use of polyurethane tubing for fuel and oil lines provides several benefits. Firstly, it offers greater working and burst pressures than unreinforced polyurethane, ensuring safe and reliable performance. Secondly, its flexibility and crush resistance make it easy to work with and prevent collapse under pressure or when handling. Finally, its smooth surfaces facilitate uninterrupted fluid flow, which is essential for fuel and oil line applications.
When choosing polyurethane tubing for fuel and oil lines, it is important to consider the specific requirements of your application. Factors such as working pressure, tensile strength, temperature range, and chemical compatibility should be carefully evaluated to ensure the selected tubing can safely and effectively handle the fluids it will be exposed to. Additionally, field testing is recommended due to the additives in today's gasoline and petroleum products.
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$13.59

PVC tubing is oil-safe but make sure to get reinforced PVC
When it comes to using fuel line tubing for oil lines, there are a few things to consider. Firstly, it is important to choose a tubing material that is compatible with the type of oil you will be using. Different oils have different chemical properties, and not all tubing materials are resistant to all types of oil.
One option that is often discussed for oil lines is PVC tubing. PVC, or polyvinyl chloride, is a versatile material that is used in a variety of applications, including plumbing and art. While PVC tubing is generally considered oil-safe, there are a few things to keep in mind.
Firstly, it is important to note that not all PVC tubing is created equal. The PVC tubing that is typically used for plumbing is a rigid, white pipe, while the flexible PVC tubing used for other applications often contains phthalates to make it soft. This type of flexible PVC tubing may not have the same level of oil resistance as its rigid counterpart. Therefore, it is important to check the specific type of PVC tubing you are using and its compatibility with the oil you will be using.
Additionally, when using PVC tubing for oil lines, it is crucial to ensure that the tubing is reinforced. This is especially important if the oil will be hot, as unreinforced PVC tubing may collapse under high temperatures. Reinforced PVC tubing, on the other hand, is designed to withstand higher temperatures and pressures, making it a safer option for oil lines.
It is also worth mentioning that PVC tubing may discolour or harden over time when exposed to oil. While this may not affect the functionality of the tubing, it is something to keep in mind if aesthetics are important.
In conclusion, while PVC tubing can be used for oil lines, it is important to choose the right type of PVC tubing and ensure that it is reinforced to handle the specific conditions of your application. As always, it is recommended to consult with a professional or refer to trusted sources for specific guidance on selecting the appropriate tubing for your needs.
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Copper tubing is a popular choice for fuel and oil lines
Copper tubing has been used as a source of energy for over a century. It is a popular choice for fuel and oil lines because it is durable and attractive. Copper tubing is easier to work with than other materials because it is softer and can be neatly bent by hand with patience and time. This makes it ideal for custom fit jobs.
However, some people advise against using copper tubing for fuel lines, citing concerns about its tendency to crack in high-vibration applications and the potential fire risk if it fails. Copper is a facilitator for radicalar oxidation processes and increases peroxidation, which can impact the gum content of gasoline. As a result, any metal alloy that comes into touch with gasoline in an engine's feeding system should be avoided.
Despite these concerns, copper tubing can be an acceptable choice for fuel and oil lines if installed and maintained properly. It is important to note that new copper tubing is easier to work with than old tubing, which can become hard and difficult to bend without kinking. To soften old copper tubing, it can be heated, making it easier to bend. When working with copper tubing, it is recommended to use special tubing wrenches, such as a wide-jawed crescent wrench, for removing tubing nuts and connections.
Overall, copper tubing can be a viable option for fuel and oil lines, but it is essential to carefully consider the potential risks and take the necessary precautions during installation and maintenance.
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Aluminium tubing is another popular choice for fuel and oil lines
Aluminium tubing is easy to bend or shape, allowing for independent and effortless replacement or assembly. It can be cut and flared and can even be polished to a high sheen. Typically, only the 37-degree single flare method is used with aluminium since it is a soft material, and it is difficult to get quality flares when using the 45-degree double flare method.
Aluminium tubing is often used for fuel, transmission, and oil supply lines, as well as vacuum and coolant lines. However, it should not be used for pressurised brake lines. When subjected to vibration and repeated bending, aluminium will harden and may become brittle. To prevent corrosion, it is recommended to use the same type of material in the tubing and to use cushion clamps when installing the lines.
One popular brand offering aluminium tubing for fuel and oil lines is EVILENERGY, which offers a range of aluminium coiled fuel line hard tubing kits. These kits include tools and accessories, such as tube cutters, tube benders, deburring tools, tube clamps, and compression fittings, making installation easier.
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Nylon fuel lines are a good alternative to steel gasoline lines
However, nylon is sensitive to tears and abrasions and has poor heat resistance. It can dry and crack if exposed to too much heat. It is also not very compatible with exhaust systems.
Nylon fuel lines are a good option for those looking for a durable, flexible, and cheap alternative to steel gasoline lines. However, it is important to carefully route the lines to ensure they don't rub against other parts and avoid using them in high-heat areas.
When compared to steel lines, nylon lines offer improved flexibility and durability. Steel lines are stronger and better at dissipating heat, but they are more difficult to work with and bend. They also require more maintenance, as they are susceptible to corrosion.
Overall, nylon fuel lines are a good choice for those looking for a long-lasting, flexible, and cost-effective solution. However, it is important to carefully consider the specific application and take into account the limitations of nylon, such as its heat sensitivity and compatibility issues with exhaust systems.
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Frequently asked questions
Yes, fuel line tubing can be used for oil lines. There are various materials available on the market that can be used for both fuel and oil lines, such as copper, aluminum, polyurethane, and nylon.
Copper is one of the most appealing materials for fuel and oil lines as it establishes a long-term connection. It is also easy to install compared to old tubing.
Other materials that can be used include aluminum, which is easy to bend and cut, and polyurethane, which offers great resistance to most gasolines, oils, and other petroleum-based compounds. Nylon is also a popular choice due to its cost-effectiveness and ease of installation.




























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