Sylvie Willis
Adding an extra fuel tank to your Jeep can be a great way to increase your vehicle's range and avoid frequent refuelling stops. However, it's important to carefully consider the risks and benefits of carrying extra fuel. While auxiliary fuel tanks can provide added convenience, particularly for off-road adventures or travel in remote areas, they also come with safety concerns. There are several options available for those who want to extend their Jeep's fuel capacity, including aftermarket auxiliary tanks, custom installations, and creative solutions like fuel bladders or additional fuel cans.
Characteristics and Values Table for Adding an Extra Fuel Tank to a Jeep
| Characteristics | Values |
|---|---|
| Company | Long Ranger, GenRight, Rock Slide Engineering, TITAN Fuel Tanks, LRA, Roam |
| Location of tank | Beneath the vehicle, mounted on top, bolted to the sides, chassis level |
| Tank capacity | 10 gallons, 25 gallons, 33 gallons, 39 gallons, 55 gallons, 400-500 miles range |
| Installation | Requires installation kit, hardware, and tools; can be done by a professional or DIY |
| Safety | Risk of fire or explosion if transporting fuel in containers; use metal HD military-type gas containers |
| Fuel transfer | Transfer pump, press of a button, gravity feed system, fuel line |
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What You'll Learn
Auxiliary fuel tank options
Auxiliary fuel tanks are a great way to increase your Jeep's range without having to stop and refill. They come in various shapes and sizes and can be installed in different locations on your vehicle. Here are some options to consider:
Auxiliary Tank Manufacturers
- Long Ranger: Based in Australia, Long Ranger manufactures auxiliary fuel tanks that feed into your Jeep's main tank. They offer a 10-gallon tank that may fit both 2-door and 4-door Jeep models.
- TITAN Fuel Tanks: An American company that manufactures aftermarket high-capacity gasoline and diesel tanks made from military-grade polymer. They offer a range of auxiliary tank options, including midship direct replacement tanks, spare tire carrier aux systems, and truck bed transfer tanks.
- LRAM: Sells high-quality, 2mm aluminized steel tanks in the United States, Canada, and Mexico. They offer tanks with capacities up to 39 gallons, providing an impressive range of approximately 600 miles on a single fill.
Auxiliary Tank Installation Options
- Under Vehicle Mount: The most common location for an auxiliary tank is beneath the vehicle. This option keeps the centre of gravity low and can be a straightforward installation process.
- Truck Bed Transfer Tank: If you own a truck, you can opt for a transfer tank that sits on top of your vehicle in the truck bed. This option may be suitable if you have limited space underneath your Jeep.
- Custom Locations: Some Jeep owners have explored custom locations for their auxiliary tanks, such as over the truck box fender flare or using a gravity feed system with a spare tire-mounted fuel can. Ensure that you comply with local laws and regulations regarding fuel tank installations.
Safety Considerations
When considering auxiliary fuel tanks and transporting extra fuel, safety should always be a top priority. Here are some essential safety tips:
- Consult a professional mechanic or a specialised installation shop to ensure a safe and proper installation.
- Always use high-quality fuel containers designed for vehicle use, such as metal HD Military-type gas containers. Avoid using plastic containers whenever possible.
- Avoid mounting fuel tanks or containers on the roof of your Jeep. Roof mounts have weight and mounting limits, and they can reduce your vehicle's fuel efficiency due to increased drag.
- Be cautious when transporting fuel inside your vehicle. Some countries and regions may have regulations prohibiting this practice. Always use appropriate fuel containers and secure them safely to minimise the risk of accidents.
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Safety considerations for carrying extra fuel
Carrying extra fuel in your Jeep warrants some safety considerations. Here are some detailed guidelines to ensure your safety:
Firstly, it is essential to use appropriate fuel containers. Opt for CARB-approved fuel containers, which are designed to prevent leakage. These containers should always be in good repair, with functional caps that prevent fuel leakage during transportation. Additionally, consider using containers designed for fuel storage, such as jerry cans, Rotopax containers, or gas dollys, which are often coloured red for easy identification.
The placement of the extra fuel containers is another critical aspect. While there may be no completely safe place to carry extra fuel on the outside of a vehicle, it is generally recommended to mount the containers near the centre of gravity of the Jeep to maintain stability. This can be achieved by using side mounts or placing the containers inside the Jeep, ensuring they are securely locked and do not obstruct the driver's view or create a higher centre of gravity.
It is also important to consider the security of the fuel containers to prevent theft. You can lock the containers to the mount using accessories like metal straps or the Rotopax locking system. Additionally, always fill up your containers at the last opportunity before hitting the trail and empty them into your fuel tank before leaving, reducing the risk associated with carrying extra fuel unnecessarily.
Finally, defensive driving practices are crucial when carrying extra fuel. Be mindful of your vehicle's limitations, and avoid putting it at risk by driving cautiously both on and off the trail. Additionally, be aware of any government regulations or guidelines regarding the transportation of fuel, especially if it is for commercial use, as this may require additional permits or safety measures.
By following these safety considerations, you can confidently carry extra fuel in your Jeep while prioritising your security and that of those around you.
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Installation process and requirements
The installation process and requirements for adding an extra fuel tank to a Jeep will vary depending on the specific model of the Jeep, the type of auxiliary fuel tank chosen, and the desired mounting location. Here is a step-by-step guide on how to approach the installation process:
Planning and Requirements:
Before beginning the installation, it is crucial to determine the specific requirements for your Jeep model and choose an appropriate auxiliary fuel tank. Consider factors such as the available space, the desired mounting location, and the amount of additional fuel capacity needed. Research and select a reputable manufacturer or supplier of auxiliary fuel tanks, such as Long Ranger, GenRight, or TITAN Fuel Tanks, who offer products specifically designed for Jeeps.
Mounting the Auxiliary Fuel Tank:
The mounting process will depend on the chosen location and the type of fuel tank. Some tanks are designed to be mounted beneath the vehicle, while others can be placed on top, such as truck bed transfer tanks. Ensure that you have all the necessary mounting hardware, straps, and fittings for a secure installation. Follow the manufacturer's instructions for the specific tank you have chosen.
Connecting the Fuel System:
Auxiliary fuel tanks typically work in tandem with the stock OE fuel tank. This involves connecting the auxiliary tank to the vehicle's fuel system. Most auxiliary tanks have a separate fill neck and a transfer pump that allows fuel to be transferred to the main tank. Ensure that all connections are secure and leak-proof to avoid any safety hazards.
Integrating with the Fuel Gauge:
Some auxiliary fuel tanks, like the LRA replacement tank, use the stock fuel gauge, light, and OE fill neck. This seamless integration maintains the original look of your dashboard while increasing fuel capacity. However, other auxiliary tanks may have their own fuel gauge and switch, requiring additional wiring and integration with your Jeep's electrical system.
Testing and Safety Checks:
Once the installation is complete, thoroughly inspect all connections, fittings, and hoses to ensure there are no leaks. Test the auxiliary fuel tank by filling it with fuel and monitoring the vehicle's fuel gauge to ensure accurate readings. Educate yourself on the safety precautions and procedures when using an auxiliary fuel tank, especially when refuelling or driving with a full tank.
Maintenance and Care:
Regularly inspect and maintain your auxiliary fuel tank to ensure its longevity and safety. Keep it clean and free from debris or damage. Follow the manufacturer's recommendations for any specific care instructions or maintenance requirements for your particular auxiliary fuel tank model.
It is important to note that adding an auxiliary fuel tank may have implications for your vehicle's weight distribution, fuel mileage, and computer settings. Always consult a professional or a mechanic if you are unsure about any aspect of the installation or if you encounter any issues during the process.
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Fuel tank capacity and range
Firstly, the type of Jeep you own will influence the available options for auxiliary fuel tanks. Different Jeep models have varying default fuel tank sizes, ranging from 12 to 22 gallons. This is important because the auxiliary tank will work in tandem with the stock tank, so the capacity of the auxiliary tank should complement the existing tank without causing any interference.
Secondly, the intended use of your Jeep will dictate the required fuel tank capacity and range. If you frequently drive in remote areas with limited access to gas stations, you may require a larger auxiliary fuel tank to maximise your range. For example, some Jeep owners who drive in rural areas have considered bringing extra fuel in jerry cans, but they are seeking more elegant solutions that do not involve storing fuel inside the vehicle, which can be unsafe.
When choosing an auxiliary fuel tank, it is essential to consider the range it offers. Some auxiliary tanks can provide a range of 500-plus miles, while others claim to offer around 600 miles on a single fill. The range you require will depend on the distances you typically cover between fill-ups.
Additionally, the installation process and compatibility of the auxiliary fuel tank are vital factors. Some tanks can be installed quickly and easily, while others may require adjustments to the vehicle's computer system to accommodate the increased fuel capacity. It is also important to consider the location of the auxiliary tank. Some Jeep owners prefer to keep the centre of gravity as low as possible by installing the tank at the chassis level. Others opt for roof-mounted tanks, but it is important to consider the weight and mounting limits, as well as the potential impact on fuel efficiency due to increased drag.
Overall, when considering adding an extra fuel tank to your Jeep, carefully evaluate your specific needs and preferences regarding fuel tank capacity and range. This will help you make an informed decision about the most suitable auxiliary fuel tank option for your vehicle.
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Fuel tank placement
Under the Vehicle
One common practice is to mount the auxiliary tank beneath the Jeep, similar to the setup in some Pajero models. This placement option keeps the tank out of sight and utilises the space underneath the vehicle. It is important to ensure that the tank is securely attached and does not interfere with other components.
Truck Bed Transfer Tank
If you own a truck-style Jeep, you may opt for a truck bed transfer tank. This type of tank sits on top of the vehicle, typically in the truck bed area. TITAN Fuel Tanks, for example, offer models that can be placed in the truck bed, providing a convenient and visible solution.
Chassis-Level Placement
Some Jeep owners prefer to keep the auxiliary fuel tank at the chassis level to maintain a low centre of gravity. This option may involve strapping the tank to the chassis rails or integrating it with the vehicle's existing fuel system. This placement option can provide stability and a streamlined appearance.
Spare Tire Carrier Aux Systems
Another innovative solution is to utilise the spare tire carrier as an auxiliary fuel tank system. This setup integrates the fuel tank with the spare tire, often featuring a transfer pump to transfer fuel to the main tank. This option can be convenient and efficient, making use of existing structures.
Roof-Mounted Tanks
While less common due to safety concerns and potential negative impacts on mileage, some Jeep owners opt for roof-mounted auxiliary fuel tanks. These tanks are typically placed on the roof rack or attached directly to the roof. This option may be suitable for specific use cases but carries risks and can affect the vehicle's aerodynamics.
When deciding on fuel tank placement, it is essential to prioritise safety and compliance with local regulations. Consult with professionals or mechanics who have experience with auxiliary fuel tank installations to ensure a secure and functional setup.
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Frequently asked questions
There are several options for adding an extra fuel tank to your Jeep. You could consider an auxiliary tank, which works in tandem with your existing fuel tank. These can be mounted beneath your vehicle or on top, depending on the model. Alternatively, you could replace your existing fuel tank with a larger one.
There are several companies that manufacture auxiliary fuel tanks, including Long Ranger, GenRight, TITAN Fuel Tanks, and LRAM.
If you are skilled with tools and know your way around a vehicle, you may be able to install an auxiliary tank yourself. However, it is recommended to consult a professional for guidance.
Auxiliary fuel tanks significantly increase your vehicle's range, so you won't need to stop as often to refuel. They also offer the convenience of refilling your main tank while driving.
Auxiliary fuel tanks can be expensive, and they may affect your vehicle's mileage and fuel gauge accuracy. Additionally, they can add weight to your vehicle, which may impact performance and handling. It is important to consider these factors before investing in an auxiliary fuel tank.
