
Choosing the right size for a bed fuel tank depends on several factors, including the make and model of your vehicle, your travel habits, and your budget. The most common sizes for bed fuel tanks range from 16 to 20 gallons, with some options offering larger capacities of up to 50 or even 70 gallons. When considering the size of your bed fuel tank, it's essential to take into account the available space in your vehicle, as well as the weight of the fuel, which can impact your mileage. Additionally, for homes, the industry rule-of-thumb is that one or two-bedroom homes at 2,500 sf or less typically require a 275-gallon heating oil tank, while larger homes may need a 300 to 500-gallon tank.
| Characteristics | Values |
|---|---|
| Fuel tank size for 2000 F-350 Crew w/ Long bed | 38 gallons |
| Fuel tank size for 02 F250 Crew Cab Short Bed | 25-28 gallons |
| Fuel tank size for 2000 F-350 Crew w/ Long bed | 32 gallons |
| Fuel tank size for LWB GM trucks | 20 gallons |
| Fuel tank size for SWB GM trucks | 16 gallons |
| Fuel tank size for M1028a2/3 with maintenance bed | 16 gallons |
| Fuel tank size for M1031 | 20 gallons |
| Fuel tank size for Short bed Ram | 25 gallons |
| Fuel tank size for Northern Tool | 36 gallons |
| Fuel tank size for RDS | 45 gallons |
| Fuel tank size for S&B | 50 gallons |
| Fuel tank size for OEM | 35 gallons |
| Fuel tank size for RDS Gas or Diesel Transfer Tank | 70 gallons |
| Fuel tank size for one or two-bedroom homes at 2,500 sf or less | 275 gallons |
| Fuel tank size for three or four-bedroom homes, or homes larger than 2,500 sf | 300 to 500 gallons |
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What You'll Learn

Truck bed fuel tank sizes range from 11 to 70 gallons
When it comes to truck bed fuel tanks, there are a few factors to consider when deciding on the size of the tank. Firstly, you should think about how much fuel you need to carry and the size of your truck bed. The payload rating is also important, especially if you will be carrying other items in your truck bed at the same time. Keep in mind that a larger tank will be heavier and take up more space.
Truck bed fuel tank sizes vary, with some tanks designed to hold as little as 36 gallons and others capable of holding up to 200 gallons. The size you choose will depend on your specific needs and the capabilities of your truck. If you only need a little extra fuel capacity, a smaller tank might suffice, whereas if you require a significant amount of additional fuel, a larger tank would be more suitable.
For example, a Northern Tool 36-gallon tank in the truck bed can provide around 700 miles of range when combined with the standard OEM tank, which typically holds around 35 gallons. This setup provides a simple and cost-effective solution for those who want more flexibility in refueling without the need for large fuel tanks.
On the larger end of the spectrum, the Transfer Flow line of truck bed fuel tanks offers sizes ranging from 40 to 109 gallons, providing ample fuel capacity for various applications. Their 50-gallon model is a popular choice for those seeking a balance between capacity and space utilization.
Additionally, some companies offer truck bed fuel tanks with capacities of 51, 60, 70, and 75 gallons, providing even more options to meet specific needs. When considering these larger sizes, it is essential to ensure that your truck can handle the weight and that the tank dimensions are compatible with your truck bed.
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Common residential heating oil tank sizes: 275, 300, 340, 420, 500, 550, 675, and 1000
When it comes to choosing a heating oil tank, there are a few factors to consider. The size of your home and the number of bedrooms are important determinants of the size of the tank you will need. An industry rule-of-thumb is that one or two-bedroom homes at 2,500 sq ft or less typically require a 275-gallon heating oil tank. Three or four-bedroom homes, or homes larger than 2,500 sq ft, need a 300 to 500-gallon tank. Oval tanks can be installed either horizontally or vertically, and their capacity is determined by their width, height, and length. For example, a tank that is 44 inches wide, 27 inches high, and 60 inches long (measured horizontally) has a capacity of 275 gallons. If you are looking for a larger tank, a horizontal oval tank with dimensions of 44 inches wide, 27 inches tall, and 72 inches long can hold up to 330 gallons.
Cylindrical tanks, on the other hand, are installed horizontally, and their size can be estimated by their length and diameter. A cylindrical tank that is 60 inches long and has a diameter of 38 inches will have a capacity of 300 gallons. If you require more capacity, a tank that is 65 inches long and has a diameter of 48 inches can hold up to 500 gallons. For even larger capacities, a tank with the same diameter but measuring 130 inches in length can hold up to 1000 gallons of oil, which is a common size for underground tanks.
It is important to note that the size of your home will determine the size of your heating oil tank. If you are planning to upsize your heating oil tank, be sure to measure the available space, as some homes cannot accommodate larger tanks. Other factors to consider include your family's energy consumption, lifestyle preferences, and heating needs. By taking these factors into account, you can choose the right-sized heating oil tank for your home.
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Pros and cons of an auxiliary truck bed fuel tank
The size of an auxiliary truck bed fuel tank depends on the available payload of your truck. If you are within several hundred pounds of being at the GVWR of the truck, you may want to opt for a smaller tank. Auxiliary fuel tanks can range from 36 gallons to 100 gallons.
Pros
- Extends travel time and distance: Auxiliary fuel tanks allow you to carry more fuel, which means you can travel farther without needing to stop for refuelling. This can be especially useful if you frequently travel long distances or in areas where fuel stations are scarce.
- Fuel savings: With an auxiliary tank, you have the flexibility to buy fuel in areas with lower prices, potentially saving money on fuel costs.
- Convenience: You can refuel when it suits you, rather than when your truck demands it. This means no more unnecessary fuel stops, especially at busy truck stops.
- Increased fuel capacity: Auxiliary tanks can double or triple your fuel capacity, which is beneficial for those hauling RVs or diesel.
- Easy installation: Some auxiliary fuel tanks can be installed without taking up any additional bed space, and some users have reported doing the installation themselves.
Cons
- Loss of bed space: Installing an auxiliary fuel tank will result in a loss of usable bed space in your truck. This can be a significant drawback if you frequently use the bed of your truck for hauling or storing items.
- Weight considerations: Fuel tanks and diesel fuel can be heavy, adding significant weight to your truck. This may impact the payload capacity and handling of your vehicle.
- Leaking and contamination: There have been reports of auxiliary fuel tanks leaking, and concerns about water contamination from the fuel nozzle and rainwater.
- Cost: Auxiliary fuel tanks can range from a few hundred to over a thousand dollars, depending on the size and brand. There may also be additional costs for pumps, filters, and other accessories.
- Maintenance: Auxiliary fuel tanks may require regular maintenance, such as keeping the locking fuel cap free from ice in cold weather.
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How to calculate your truck's MPG
To calculate your truck's MPG, or fuel efficiency, you need to know how much money you spend on diesel. This is calculated by dividing the number of miles driven by the number of gallons of fuel used. For example, if your truck has travelled 1,083 miles and you put in 190 gallons of fuel, your truck's fuel efficiency is 5.7 miles per gallon.
There are a number of factors that can affect your truck's MPG. Firstly, the weight of the cargo. The heavier the load, the more fuel is required to move it. This is why it is important to remove unnecessary weight from your truck. Similarly, hitching a trailer to your truck will decrease fuel efficiency.
The age of your truck will also impact its MPG. Older trucks tend to be less fuel-efficient than newer models. A truck manufactured in 2009 may average 6 MPG, while newer trucks can average between 8 and 12 MPG.
Your driving style can also have an impact. Aggressive driving, including fast acceleration, braking and high speeds, can reduce fuel efficiency. Maintaining a steady speed and accelerating gradually can improve fuel economy. According to the U.S. Department of Energy, the optimal speed for fuel efficiency is 55 mph. Cruise control can help you maintain a consistent speed and reduce unnecessary acceleration and deceleration.
Idling can also waste fuel. If you are stopped for more than 10 seconds, it is more fuel-efficient to turn off your engine and restart when you are ready to go.
Other factors that can impact your truck's MPG include:
- Air conditioning usage, especially in hot climates
- Under-inflated tires
- Driving with the windows down at high speeds
- Roof-mounted cargo, which increases drag
- Driving short distances
- Driving in the city, with lots of stop-start journeys
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Tips for choosing the right-sized oil tank for your home
When choosing the right-sized oil tank for your home, there are several factors to consider. Firstly, determine the size of your current tank if you have one. The capacity of the tank in gallons and its dimensions in height, width, and depth are important measurements to note. If you have a newer tank, the capacity is often listed on the tank's nameplate.
Next, consider the size of your home. An industry rule-of-thumb is that one or two-bedroom homes of 2,500 square feet or less typically require a 275-gallon heating oil tank, while three or four-bedroom homes or homes larger than 2,500 square feet may need a 300 to 500-gallon tank.
Space availability is another crucial factor. Measure the area where you plan to place the oil tank to ensure it can accommodate your desired tank size. Some homes may have space constraints that limit the size of the oil tank.
Your family's energy consumption patterns and lifestyle preferences also play a role in determining the right-sized oil tank. Consider factors such as family size, eco-consciousness, vacation habits, and the presence of elderly family members who prefer a warmer house. These factors will influence your heating oil requirements and the size of the tank needed.
Additionally, be mindful of any plans for future expansion or changes in your energy needs. Choosing an oil tank that can accommodate your current and future requirements is essential to ensure you have sufficient heating oil capacity.
By considering these tips and carefully evaluating your specific needs, you can make an informed decision when choosing the right-sized oil tank for your home.
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Frequently asked questions
The size of the in-bed fuel tank depends on the make and model of your truck. For example, the OEM tank for a Northern Tool truck is 35 gallons, while the stock tank for a Short Bed Ram is 25 gallons. If you are looking for an auxiliary tank, you can find sizes ranging from 15 to 70 gallons.
When choosing an in-bed fuel tank, you should consider the available payload of your truck, as well as the dimensions of the tank to ensure it fits in your truck bed. You should also think about the capacity of the tank and how much fuel you will need for your trips.
Yes, it is important to consider regulations and safety when installing an in-bed fuel tank. According to one source, it may be against DOT regulations to directly plumb an auxiliary tank into the main tank. Additionally, you should ensure that your setup prevents overfilling and accidental fuel spills.











































