
The Ram 1500 is a powerful truck that offers different fuel tank sizes. The standard fuel tank size for the Ram 1500 is 26 gallons, with an optional upgrade to a 33-gallon tank. Some older models from 2015 and before feature a 23-gallon tank, while others have a 32-gallon tank. The fuel pump is inside the tank and requires fuel to keep cool, leaving around 6-7 gallons as a reserve. Auxiliary fuel tanks are also available for the Ram 1500, with sizes ranging from 40 to 100 gallons, providing extended fuel capacity for longer trips.
| Characteristics | Values |
|---|---|
| Fuel tank sizes | 23, 26, 32, 33 gallons |
| Fuel tank size dependency | Trim level and cab/bed configuration |
| Fuel pump | Inside the tank, requires 5-7 gallons of fuel to keep cool |
| Auxiliary fuel tank | Available in 40, 50, 66, 75, 80, 82, 100 gallons |
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What You'll Learn

The standard Ram 1500 fuel tank size is 26 gallons
The standard fuel tank size for the Ram 1500 is 26 gallons. This is the typical tank size for the Ram 1500, with some models offering a larger 33-gallon tank as an option. The Ram 1500 is a powerful truck that can also be equipped with a smaller 23-gallon tank, depending on the trim level and configuration.
The 26-gallon fuel tank provides a generous fuel capacity, allowing for a comfortable ride and the ability to haul heavy loads. However, some owners have expressed a desire for larger tanks, especially when travelling long distances or towing. To accommodate these needs, Ram offers auxiliary fuel tanks that can be paired with the truck to extend its fuel capacity. These auxiliary tanks come in various sizes, such as 50, 66, and even 100 gallons, providing significant additional fuel capacity for longer trips.
It's important to note that the fuel pump for the Ram 1500 is located inside the tank, and it requires fuel to keep it cool. This means that the "empty" tank still retains several gallons of fuel to protect the pump, which is important to consider when planning refuelling. Additionally, Ram trucks are known for their conservative tank sizing versus gauge readings, so it's always a good idea to refuel before the tank reaches empty.
The Ram 1500 has undergone significant evolution since its initial release, and fuel tank sizes may vary slightly across different model years. For example, some owners of the 2020 Ram 1500 have reported having a 23-gallon tank, while others mention a 26-gallon tank in their 2015 models. It's always a good idea to refer to the owner's manual or build sheet to confirm the exact fuel tank size of a specific Ram 1500 model.
In summary, the standard Ram 1500 fuel tank size is 26 gallons, providing a good balance between fuel capacity and performance. With the option of auxiliary tanks and different configurations, Ram offers flexibility to meet the diverse needs of its customers.
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$89.89

There is an optional upgrade to a 33-gallon tank
The Ram 1500 is a powerful truck that can be fitted with a range of fuel tank sizes. While the standard tank size is 23 or 26 gallons, there is an optional upgrade to a 33-gallon tank. This upgrade provides several benefits and is a popular choice for those who frequently tow trailers or travel long distances.
The 33-gallon tank upgrade offers increased fuel capacity, reducing the need for frequent refuelling stops. This can be especially advantageous for those who use their Ram 1500 for towing or for those who drive long distances, as they can travel farther on a single tank of fuel. With a larger fuel capacity, the upgrade provides a greater sense of fuel security, ensuring that you have enough fuel to reach your destination without worrying about running out.
Upgrading to the 33-gallon tank can enhance your driving experience by providing greater flexibility and peace of mind. For example, when travelling across states or in areas where fuel stations are scarce, the larger tank reduces the urgency of finding a refuelling stop. This can make your trips more enjoyable and reduce the stress of constantly monitoring your fuel gauge.
The process of upgrading to the 33-gallon tank involves some modifications. It typically requires purchasing an aftermarket tank and installing it in the bed of your Ram 1500. While it may be a straightforward process, as indicated by some YouTube videos, it is important to consult with knowledgeable sources or professionals to ensure compatibility and proper installation.
While the 33-gallon tank upgrade offers benefits, it is important to consider your specific needs and usage patterns. Some owners have expressed their preference for the larger tank, wishing they had given more thought to fuel tank size before purchasing their truck. However, it is worth noting that upgrading to a larger tank may come with additional costs and considerations, such as the psychological impact of seeing triple digits at the gas pump.
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Some models have a 23-gallon tank
The Ram 1500 is a powerful truck that offers a range of fuel tank sizes. While some models have a 26-gallon tank, others offer a 33-gallon tank as an upgrade. However, some Ram 1500 owners have reported that their trucks come with a 23-gallon fuel tank. This smaller tank size has been an issue for some, requiring more frequent refuelling, especially when towing.
For instance, one owner of a 2022 Ram 1500 Lonestar with a 23-gallon tank reported that they had to plan fuel stops carefully when travelling in west Texas, even running on fumes as they rolled into town. They considered upgrading to the 33-gallon tank, which would cost around $1,100 to $1,200 for parts. Another owner of a 2020 Ram 1500 with a 23-gallon tank expressed regret for not choosing a larger tank, as they had to fill up more often.
The fuel tank size of the Ram 1500 appears to depend on various factors, including the trim level and cab/bed configuration. Some sources suggest that the eTorque model is associated with a 23-gallon tank, while others indicate that it is configuration-dependent.
Upgrading to a larger fuel tank is possible, but it may require changing computer settings so that the fuel gauge functions correctly with the new tank size. Overall, while the 23-gallon tank is an option for the Ram 1500, some owners have found it less convenient than larger tank sizes due to the need for more frequent refuelling.
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The 32-gallon tank is a special edition
The Ram 1500 is a powerful truck that offers a range of fuel tank sizes. The standard fuel tank size is 26 gallons, with an optional upgrade to a 33-gallon tank. However, some special editions of the Ram 1500 come equipped with a 32-gallon fuel tank. This special edition fuel tank is a notable feature that sets certain models apart from the rest.
The 32-gallon fuel tank in the Ram 1500 is indeed a rare offering, and it is considered a "special edition" option. This larger fuel tank provides increased fuel capacity, allowing for extended driving ranges and fewer fuel stops during long-distance travels. The 32-gallon tank is particularly advantageous for those who frequently embark on cross-country trips or cover significant distances with their trucks.
The Ram 1500 with the 32-gallon fuel tank is designed to offer enhanced convenience and peace of mind for drivers. With a larger fuel capacity, drivers can enjoy greater flexibility and reduced concerns about frequently searching for fuel stations. This feature is especially beneficial in remote areas or during extended periods of driving without easy access to refuelling options.
The special edition 32-gallon fuel tank in the Ram 1500 also contributes to improved efficiency. While the exact mileage may vary depending on driving conditions and the engine's performance, a larger fuel tank can result in fewer refuelling stops over time. This efficiency is further enhanced by the reduced need to carry additional fuel containers, which frees up space for other essentials during long-distance journeys.
The Ram 1500's 32-gallon fuel tank is a testament to the manufacturer's attention to detail and willingness to cater to diverse customer needs. By offering this special edition option, Ram demonstrates its understanding that fuel capacity is a critical consideration for many truck owners, especially those who rely on their vehicles for extended trips or heavy-duty tasks. This special edition fuel tank sets a precedent for future models and raises the bar for competitor offerings in the market.
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Auxiliary fuel tanks can be purchased to extend the fuel capacity
The RAM 1500 is a powerful truck that offers a range of fuel tank sizes, including 23, 26, and 33 gallons. However, some owners have reported discrepancies between the stated and actual fuel tank capacities. To increase the fuel capacity of your RAM 1500, you can purchase auxiliary fuel tanks, also known as transfer tanks, which are available in various sizes.
There are several reputable companies that offer auxiliary fuel tanks for the RAM 1500. Transfer Flow, for example, offers a range of transfer tanks with capacities of 40, 50, 75, 80, and 100 gallons. These tanks are designed to fit the RAM 1500 and are DOT-approved to carry diesel, gas, methanol, ethanol, and kerosene. Another popular option is the FuelBox, which offers auxiliary fuel tanks with toolboxes, including the FTC40 (37 gallons) and FTC62 (40 gallons).
When installing an auxiliary fuel tank, it is important to consider safety regulations and fuel connections. Gasoline vapors can be explosive, so it is crucial to ensure that the tank is securely installed and meets the required standards. Additionally, the fuel connections from the auxiliary tank to the primary system should not interfere with the normal functions of the factory fuel system.
It is worth noting that some owners of the RAM 1500 have expressed concerns about the volatility of gasoline in auxiliary fuel tanks installed in the truck bed. While some have opted for enclosed units with filler necks under the lid, others have shared experiences of being unable to find aftermarket in-bed tanks for gasoline that can be connected to the fuel system. Therefore, it is essential to carefully consider the available options and seek information from other RAM 1500 owners before making a purchase decision.
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Frequently asked questions
The standard fuel tank sizes for the RAM 1500 are 23, 26, or 33 gallons.
Some larger fuel tank options for the RAM 1500 include 32, 40, 50, 66, 75, and 100 gallons.
Fuel efficiency for the RAM 1500 varies, with some users reporting mileage of 15-17 mpg, while others report 10 mpg under heavy load.











































