Rajan Wilcox
The Toyota Tundra is a popular vehicle with a dedicated online community. One of the most frequently discussed topics is the size of the fuel tank, with some users opting for the larger tank option. The 2007-2020 Toyota Tundra short bed and long bed Double Cab and CrewMax models offer a 46-gallon replacement fuel tank system, nearly doubling the driving range. This is an attractive option for those who tow or take road trips, but for those who only commute, the standard tank is sufficient. The standard tank size varies, with some users reporting 26 gallons, while others state that their tanks hold up to 38 gallons.
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What You'll Learn
Fuel tank capacity varies by model
The fuel tank capacity of the Toyota Tundra varies depending on the model year and trim level. For example, the 2023 Toyota Tundra SR5 4x4 CrewMax has a fuel tank size that depends on the bed length, with a 26-gallon tank for the short bed and a 38-gallon tank with the SR5 upgrade package. Similarly, the 2021 Toyota Tundra is reported by an owner to have a 38-gallon tank.
Some Toyota Tundra owners have reported that their fuel gauges are not always accurate, with some drivers able to add a few extra gallons after the pump cuts off. This could be due to filling the tube leading to the tank or the design of the gauge, which may not accurately reflect the amount of fuel remaining.
For older models, such as the 2007-2020 Toyota Tundra short bed and long bed Double Cab and CrewMax, a 46-gallon replacement fuel tank system is available, nearly doubling the vehicle's driving range. This option is suitable for drivers who want to maximize their fuel capacity without sacrificing truck bed space.
When deciding on a fuel tank size, it's important to consider your typical driving habits. If you frequently tow trailers or go on road trips or backcountry adventures, a larger tank may be more suitable. On the other hand, if you primarily use your vehicle for commuting and around-town trips, a smaller tank may be sufficient.
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The larger tank is useful for long trips and towing
The larger fuel tank in the Toyota Tundra is useful for long trips and towing. The 46-gallon replacement fuel tank system, available for certain 2007-2020 Toyota Tundra models, nearly doubles the driving range without sacrificing truck bed space. This is especially beneficial for those who frequently go on long trips or need to tow, as it eliminates the need to stop as often for refuelling.
For example, a 2021 Toyota Tundra owner who tows a trailer mentioned that the 38-gallon tank is essential due to the additional mileage it provides. This allows them to avoid stopping with the trailer to refuel, which can be inconvenient and time-consuming.
The larger tank is also advantageous for those who engage in backcountry adventures or road trips, as it provides peace of mind and reduces the frequency of fuel stops. While the smaller tank may be sufficient for commuting and driving around town, the larger tank offers more flexibility and range for longer or more demanding journeys.
Furthermore, the larger tank can be a worthwhile investment when spending a significant amount of money on a vehicle. It ensures that you don't have to settle for less and can get the features you truly want, such as leather seats and a larger fuel capacity.
Overall, the larger fuel tank in the Toyota Tundra enhances its utility for long trips and towing by providing increased fuel capacity, reducing refuelling stops, and offering added convenience and flexibility for various driving needs.
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The tank size can be determined by checking the owner's manual
The Toyota Tundra is a full-size pickup truck with different generations offering varying fuel tank capacities. The first-generation Tundra featured a 26.4-gallon tank, while the second generation introduced a larger 38-gallon tank option. The fuel tank capacity of your Toyota Tundra can be determined by referring to the owner's manual.
The owner's manual is a comprehensive guide that provides essential information about your vehicle, including its specifications and features. In the case of the Toyota Tundra, the owner's manual will specify the fuel tank capacity for your specific model year and trim level. This information is typically included in the "Vehicle Specifications" or "Technical Specifications" section of the manual.
By consulting the owner's manual, you can verify the exact fuel tank size of your Toyota Tundra. This information is crucial, especially when considering factors such as extended range, towing capability, and off-road usage. A larger fuel tank capacity allows for longer trips between refuelling, which is advantageous for both work and recreational purposes.
Additionally, the owner's manual may provide insights into achieving optimal fuel efficiency. It might offer recommendations such as maintaining a steady speed on highway drives, reducing idle time, utilising navigation apps to avoid traffic, and removing unnecessary weight from the truck bed or cabin. These practices can help maximise the range of your Toyota Tundra, regardless of the fuel tank size.
If you are unsure about the fuel tank size of your Toyota Tundra, the owner's manual serves as a reliable source of information. It provides detailed specifications and guidance tailored to your specific vehicle, ensuring that you can make informed decisions regarding fuel capacity and overall vehicle performance.
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The fuel gauge is inaccurate
The fuel gauge on the Toyota Tundra has been a source of frustration for many owners, with reports of inaccuracy and unexpected fuel shortages. Some owners have shared their experiences, noticing that their vehicles consumed more fuel than usual when the gauge indicated a quarter of a tank remaining. In some cases, this has led to unexpected instances of running out of fuel.
The issue appears to be related to the fuel gauge sending unit, which utilises a float mechanism that can be influenced by factors such as the vehicle's movement and position. For example, if the keys are left in the ignition in the "on" position, the float may get stuck, resulting in an inaccurate reading the next time the vehicle is used. This low-tech design can lead to significant inaccuracies, causing the fuel gauge to be unreliable.
Toyota owners have expressed their disappointment in the brand, expecting better quality and accuracy from their vehicles. Some have resorted to using trip meters or performing calculations with each fill-up to determine their actual fuel range. Unfortunately, in some cases, Toyota has not provided corrections or warranty coverage for this issue, leaving owners with the inconvenience of a non-functioning fuel gauge.
It is important to note that while the fuel gauge may show a certain level of fuel remaining, it is always advisable to err on the side of caution and refuel when possible to avoid being stranded. Additionally, regular maintenance and inspections can help identify any potential issues with the fuel gauge or other components.
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A 46-gallon replacement tank is available
Toyota Tundra owners can now purchase a 46-gallon replacement tank for their vehicles. This is a significant upgrade from the standard 26-gallon tank, with some models offering a 38-gallon option. The replacement tank is designed to fit 2007-2020 Toyota Tundra short bed and long bed Double Cab and CrewMax models. It is manufactured with internal baffles to reduce fuel sloshing and is mounted inside the frame rail.
The tank is constructed from 12-gauge ReliaSteel, a high-yield U.S. aluminized steel, which provides superior durability and strength. This is a great option for those who want to maximise their fuel capacity and driving range, especially if they plan on towing or taking road trips. With nearly double the fuel capacity, owners can enjoy extended periods of driving without having to stop as frequently for refuelling.
The replacement tank is also backed by a 6-year, unlimited-mile warranty, giving owners peace of mind. It comes with all the necessary components for installation, making it a straightforward process. The tank sits above the differential, ensuring that no truck bed space is sacrificed in exchange for the larger fuel capacity.
For those who frequently drive long distances or use their Tundra for towing, the 46-gallon replacement tank is a valuable upgrade. It provides the convenience of increased fuel capacity without compromising on the vehicle's rugged durability. With this upgrade, Toyota Tundra owners can further enhance the versatility and performance of their vehicles to match their specific needs.
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Frequently asked questions
The big fuel tank in the Toyota Tundra is a 46-gallon replacement fuel tank system available for 2007–2020 Toyota Tundra short bed and long bed Double Cab and CrewMax models.
The standard fuel tank size of the Toyota Tundra is 26 gallons.
If you do any towing, road trips, or backcountry adventures, then the big tank is worth it. If it's mostly commuting and driving around town, the standard tank is probably sufficient.
You can determine the fuel tank size by checking the vehicle's owner's manual or looking for a sticker inside the fuel door.
