
RDS auxiliary fuel tanks are designed to provide additional fuel capacity for vehicles, increasing driving range and reducing the need for frequent refuelling. Made from heavy-duty steel or aluminium, these tanks are known for their durability and ruggedness, offering reliable fuel storage solutions for various vehicles, including trucks, RVs, boats, and expedition vehicles. The process of opening an RDS auxiliary fuel tank involves considerations such as selecting the appropriate tank size, ensuring proper installation, and understanding the fuel transfer mechanism, which can be through gravity feed or a pump system. With a focus on safety and convenience, RDS tanks often feature lockable lids, fuel gauges, and compliance with DOT standards, making them a popular choice for those seeking extended fuel capacity and peace of mind on long journeys or in challenging environments.
| Characteristics | Values |
|---|---|
| Founded | 1997 |
| Headquarters | Nashville, Tennessee |
| Manufacturing Facility | 60,000 sq ft |
| Products | Auxiliary fuel tanks, transfer tanks, and other rugged fuel storage systems |
| Tank Types | Diesel and gas auxiliary fuel tanks |
| Tank Capacities | Wide range, including 40, 46, 60, 70, 80, and 90-gallon tanks |
| Tank Shapes | Rectangular and L-shaped |
| Tank Material | Heavy-duty steel, aluminum |
| Tank Features | Baffles, manual sight gauge, drain fittings, rollover valve, vented fill cap, dual withdrawal tubes |
| Installation | Hassle-free, bolt-on installation |
| Use Case | Supplementary tanks for trucks, RVs, boats, heavy equipment, generators |
| Customer Service | Knowledgeable and helpful in selecting the right setup |
| Online Tools | Fit Finder tool to match compatible tanks based on vehicle make, model, and year |
| Recommendations | Sizing your RDS Tank about 1.5 times your stock tank size |
| Gravity Feed | Tanks can be gravity-fed using an RDS Diesel Install kit |
Explore related products
What You'll Learn

RDS auxiliary tank sizes and how to choose the right one for your vehicle
RDS offers a wide range of auxiliary tank sizes to cater to different vehicle needs. The company was founded in 1997 and has since become a leading manufacturer of high-performance fuel tanks. RDS offers both diesel and gas auxiliary fuel tanks in a range of capacities and shapes, including rectangular and L-shaped tanks.
When choosing the right RDS auxiliary tank size for your vehicle, there are several factors to consider:
- Vehicle type: The type of vehicle you own will play a role in determining the size and shape of the auxiliary tank that will fit your vehicle. RDS offers tanks that are compatible with trucks, RVs, expedition vehicles, boats, and heavy equipment.
- Average driving range: Consider how far you typically drive on a full tank of fuel. If you require a longer driving range, a larger auxiliary tank may be more suitable.
- Desired extra range: Think about how much additional range you want between fill-ups. RDS recommends sizing your auxiliary tank to be about 1.5 times your stock tank size. For example, if your vehicle's standard tank is 25 gallons, you might opt for a 40-gallon RDS auxiliary tank.
- Space constraints: Evaluate the available space in your vehicle for installing an auxiliary tank. RDS offers custom fabrication services to build fuel systems tailored to your vehicle's exact specifications.
- Fuel type: RDS auxiliary tanks are designed for diesel or gasoline fuel. Ensure that you select a tank that is compatible with your vehicle's fuel type.
To make the selection process easier, RDS provides an online Fit Finder tool. By entering your vehicle's make, model, and year, you can quickly identify compatible tanks. Additionally, you can contact RDS product experts for guidance in choosing the ideal tank for your specific requirements.
It is worth noting that RDS auxiliary tanks are constructed from heavy-duty materials, such as 16-gauge powder-coated carbon steel or durable .090" aluminum. These materials provide superior strength and durability, ensuring that your auxiliary tank can withstand tough conditions and provide a long service life.
Fuel Tank Repair: POR 15 Kit Guide
You may want to see also
Explore related products

How to install an RDS auxiliary fuel tank
RDS auxiliary fuel tanks are designed to increase driving range and can be used to add extra fuel capacity for trucks, RVs, boats, and generators, among other vehicles and equipment. The tanks are made from heavy-duty steel or durable .090" aluminum and are available in a range of capacities and shapes to suit different needs.
To install an RDS auxiliary fuel tank, first, determine the ideal tank size for your specific needs. RDS recommends sizing your tank about 1.5 times your stock tank size to maximize your range. For example, if your vehicle's standard tank is 25 gallons, consider a 40-gallon RDS auxiliary tank. You can also use their online Fit Finder tool or call their product experts to find the perfect tank for your vehicle's make, model, and year.
Once you have selected the right tank, the installation process is typically straightforward and designed for hassle-free, bolt-on installation. Some tanks, like the 70-gallon rectangular tank, can be a direct bolt-on fit and may only take a few hours to install. However, for some vehicles, you may need to make additional modifications, such as cutting and installing new bolt attaching hardware or adding tank cushion strips.
If you are installing an auxiliary in-bed tank, you will also need a method to tee-in to the filler neck/hose. Additionally, consider the orientation of the check valve or rollover valve, which is designed to prevent the flow of fuel in the event of a rollover. This valve needs to be installed facing up to function correctly.
For diesel applications, RDS offers diesel install kits (Item #s 011025, 011029, and 011408) that are sold separately. These kits include components such as a manual sight gauge, baffles to reduce sloshing, and drain fittings. It's important to note that these tanks are not intended to be used for gasoline.
Flapper Valve Inspection: Fuel Tank H-35 Maintenance
You may want to see also
Explore related products

How to use an RDS auxiliary fuel tank
RDS auxiliary fuel tanks are designed to provide additional fuel capacity for vehicles, such as trucks, RVs, boats, and heavy equipment. These tanks can be made from heavy-duty steel or aluminum, offering durability and corrosion resistance.
- Selecting the Right Tank: RDS offers a wide range of tank capacities and shapes to suit different vehicles. Use their online Fit Finder tool or consult their product experts to choose the ideal tank size and type for your specific needs.
- Installation: RDS fuel tanks are designed for easy, bolt-on installation. You can refer to their website or instruction manual for installation guidelines.
- Fueling: When fueling your vehicle, you can utilize the auxiliary tank as additional capacity. Ensure that you use the appropriate fuel type, as RDS tanks are typically designed for diesel or gas, not gasoline.
- Transferring Fuel: If you intend to transfer fuel to another vehicle, you can use the auxiliary line that comes with the RDS tank. This line regulates the flow of fuel between tanks.
- Maintaining Fuel Security: RDS auxiliary tanks often feature a lockable lid that protects the bung and gauge from weather and theft. This enhances fuel security compared to external caps that can be easily defeated.
- Compliance with Regulations: Be mindful of hazmat requirements when using auxiliary fuel tanks. In the mentioned source, it is noted that staying under 119 gallons can help avoid certain regulations.
- Customisation: RDS offers custom fabrication services to build fuel systems tailored to your specific vehicle. You can provide the required capacity and dimensions, and their engineering team will design a tank that seamlessly integrates with your vehicle.
- Additional Features: RDS auxiliary fuel tanks come with features such as manual sight gauges, baffles to reduce sloshing, drain fittings, and dual withdrawal tubes. These features enhance the functionality and usability of the tanks.
By following these steps and guidelines, you can effectively utilize an RDS auxiliary fuel tank to increase your vehicle's range and fuel capacity while taking advantage of its durability, customization options, and security features.
Installing a Fuel Oil Tank Gauge: A Step-by-Step Guide
You may want to see also
Explore related products

Why you should choose an RDS auxiliary fuel tank over other brands
RDS auxiliary fuel tanks are a great option for those looking to increase their driving range. The tanks are made from heavy-duty steel or durable aluminium, making them a rugged and reliable choice for fuel storage. With over 25 years in business, RDS has earned a reputation for quality and has supplied fuel tanks to a diverse range of customers, from overlanders to boat owners.
One of the standout features of RDS auxiliary fuel tanks is their customizability. RDS offers a wide range of capacities and shapes to suit different vehicles, and their in-house engineering team can even work with customers to create one-of-a-kind tanks tailored to specific needs. This level of customization ensures that customers get a fuel tank that perfectly matches their requirements, whether they need a tank for a truck, RV, boat, or another type of vehicle.
Another advantage of choosing RDS auxiliary fuel tanks is the company's commitment to using heavy-duty materials and advanced manufacturing techniques. This gives their fuel systems unmatched durability and safety. RDS tanks are designed to handle tough conditions and harsh environments, providing customers with peace of mind that they have a reliable fuel storage solution.
RDS also offers excellent customer service, with a Tennessee-based support team that is easily accessible via phone, email, or chat. Their product experts have decades of experience and are always ready to provide thoughtful guidance and support, whether it's helping customers choose the right tank or assisting with installation questions.
Lastly, RDS auxiliary fuel tanks offer hassle-free, bolt-on installation, making them a convenient choice for those looking to add extra fuel capacity to their vehicles. With their fuel tanks, customers can expect expanded fuel capacity, extended run time, and the convenience of not having to refuel as often.
In conclusion, RDS auxiliary fuel tanks stand out from other brands due to their customizability, durability, safety, and the company's commitment to providing excellent customer service and support. With over two decades of experience, RDS has established itself as a trusted and reliable manufacturer of high-performance fuel tanks, ensuring that customers can depend on their products even in the toughest conditions.
How to Insulate Your Fuel Oil Tank
You may want to see also
Explore related products

How to prevent theft of fuel from an RDS auxiliary fuel tank
RDS auxiliary fuel tanks are a great way to increase your vehicle's driving range. However, fuel theft is a common issue, and it is important to take steps to prevent it. Here are some ways to prevent theft of fuel from an RDS auxiliary fuel tank:
- Use a Locking Mechanism: One of the most effective ways to secure your fuel is to use a locking mechanism. RDS offers toolboxes with linked stainless steel locks that secure the fuel fill, preventing tampering. These locks are designed to be sturdy and durable, making it difficult for thieves to access the fuel tank.
- Opt for a Gravity-Fed Tank: Gravity-fed fuel tanks, such as those offered by RDS, have a simple design with fewer components, making them less susceptible to theft. They do not require pumps or sensors, which can be targeted by thieves. Additionally, gravity-fed tanks can be equipped with a float valve to regulate fuel flow and an electrically-actuated ball valve that cuts off the flow when power is cut, providing an extra layer of security.
- Choose a Tank with a Secure Cap: While locking external caps can sometimes be defeated by determined thieves, RDS fuel tanks feature a vented fill cap that is designed to be secure. The cap helps protect the fuel from theft and weather conditions.
- Install a Fuel Level Monitoring System: Consider installing a fuel level monitoring system that can alert you to sudden drops in fuel level, indicating potential theft. Modern systems can send real-time alerts to your phone or device, allowing you to take immediate action.
- Park in Well-Lit and Secure Areas: Whenever possible, park your vehicle in well-lit and secure areas. Look for parking lots with security cameras, fencing, or other security measures in place. This makes it more difficult for thieves to access your fuel tank without being detected.
- Regularly Check Fuel Levels: Be vigilant about checking your fuel levels. If you notice any sudden or unusual drops in fuel level, it could indicate a leak or theft. Take immediate action by reporting it to the authorities and considering additional security measures.
By following these steps, you can significantly reduce the risk of fuel theft from your RDS auxiliary fuel tank. Remember to research the specific security features offered by RDS for their various tank models and choose the one that best suits your needs.
Unlocking the Fuel Tank in Ford EcoSport Titanium
You may want to see also
Frequently asked questions
To open your RDS auxiliary fuel tank, simply open the valve when you are low on fuel and at a rest stop.
RDS fuel tanks are designed for hassle-free, bolt-on installation. You can use the online Fit Finder tool to select the perfect RDS Tank fuel tank. Simply enter your vehicle's make, model, and year, and the Fit Finder will match you with compatible tanks.
The ideal auxiliary tank size depends on factors such as your vehicle, average driving range per tank, and how much extra range you want between fill-ups. RDS recommends sizing your tank to about 1.5 times your stock tank size. For example, if your truck's standard tank is 25 gallons, consider a 40-gallon RDS auxiliary tank.











































