How Many Gallons Does A Semi Truck Hold?


As one of the most important means of transport used for road transport, semi-trucks are widely used for their high power, speed, and efficiency. When transporting goods, semi-trucks are more flexible than rail transport and are not restricted by tracks. And the goods transported are more diversified. There are different types of semi-trucks. According to the number of driving wheels, semi-trucks can usually be divided into 4×2 tractors, 6×4 tractors, 8×4 tractors, and more. There are also 4×4 and 6×6 all-wheel drive tractors. Semi-trucks can also be classified according to their power.
As a truck driver or someone who wants more information about semi-trucks, there are many questions you will want to ask. For example, how many gallons does a semi truck hold? This brings us to the issue of fuel capacity. This article will give you the details.

How many gallons does a semi truck hold?

semi_truck_fuel_tank    semi_truck

How many gallons can a semi truck hold? To figure this out, you should first know how big a fuel tank your semi-truck has. The size of the tank directly affects the distance the truck can travel. The larger the tank, the further the truck will travel. So, how many gallons of fuel does a semi truck hold? A standard configuration semi-truck is capable of holding 105 gallons of fuel.  If you want your semi-truck to go further, we can also customize 160 gallons, 260 gallons, or 400 gallons for you. Generally, choosing a 160 gallons tank is sufficient for medium to long-distance cargo transport. Even if you don’t have much fuel left, you can easily find a filling station on the local roads or highways. But if you want to make your journey even more trouble-free, you can also opt for a larger tank. So you can make your semi-truck hold more fuel and travel further.

How much does a gallon of fuel weigh?

How much does a gallon of fuel weigh? Once you know how many gallons your semi-truck can hold, you also need to know the weight of the fuel. Only by taking the weight of the fuel into account can you estimate the weight more accurately. This is an essential thing. This is because you can get a ticket for exceeding the load standard.
A gallon of diesel generally weighs 7 pounds. This means when you reach the semi-truck gallon capacity, a standard configuration semi-truck tank can weigh about 735 pounds. Fuel weight often factors into decisions about whether to use one or two fuel tanks, as that weight can make a big difference.

How much fuel can a semi truck hold?

semi_truck_fuel_tank    semi_truck

We have just explored the issue of fuel capacity for semi-trucks. Semi-truck fuel tanks do not come in a standard configuration but are made to meet the buyer’s specific needs. But no matter how many gallons, don’t fill your tank to the brim. It is a good idea to use 95% of your total fuel capacity. These are some of the reasons:

  • You should allow for some air to the tank. Overfilled tanks can leak fuel through the overflow valves. This not only wastes fuel but also causes severe problems for the environment.
  • Fuel contracts and expands depending on the temperature in your environment. This can make even minor weight changes.

Besides, drivers should not let their fuel tanks go empty. Most truckers won’t allow it to drop below 25%. This is because contaminants such as bacteria and dirt can build up at the bottoms of large tanks. This is a problem. The suction system is so designed that it never draws from the bottom of the tank. How many gallons do semi trucks hold? By reading this, you should understand that no matter how many gallons of fuel your semi-truck can hold, you should stick to one guideline. That is to use 95 percent of the total fuel capacity.

How many gallons does a tanker trailer hold?

It is worth noting that semi-trucks do not carry goods. To carry goods, another particular vehicle is required – a semi-trailer. The semi-truck provides the power for the semi-trailer, which is used to hold the goods. They are always in sight together. One of the most common is the tanker trailer. It is easy to tell by the name that a tanker trailer is a tanker used to transport liquid oil.


As you can see from the picture, this 3-axle tanker semi-trailer is very large and, therefore, capable of carrying more cargo. A 3-axle tanker semi-trailer like this one can hold around 12,000 gallons of liquid. Of course, this is just one of many configurations, and we can also customize your tanker semi-trailer to hold more gallons. Sometimes we also use “tonnes” to measure the carrying capacity of a tanker semi-trailer. However, as different types of oil have different densities, then we need to do the calculations. Take petrol, for example; the density of petrol is generally calculated at 0.7; 12,000 gallons equals about 45 cubic meters, so it can pull 31.5 tonnes of petrol. From this, it is possible to calculate other tanker trailers by analogy.

Sulfuric acid tanker trailer


In addition to tank trailers, there is another less common type of tanker, the sulphuric acid tanker. The internal and external surfaces and all components are treated with corrosion protection so that sulphuric acid tankers can safely transport strong acid liquids such as sulphuric acid, nitric acid, and hydrochloric acid. Sulphuric acid tankers are usually made of stainless steel because they are more resistant to corrosion. This is because the surface of a sulphuric acid tanker made of stainless steel forms a very thin chromium-rich oxide film, isolating the tanker from strong acids and preventing the surface from being corrupted. And it can repair itself, so if it is damaged, the chromium in the stainless steel will recreate a passivated film with the oxygen in the air or liquid and continue to act as a protector. Sulphuric acid tankers are smaller in capacity compared to fuel tanker trailers. We would normally recommend a 5,000-gallon acid tank trailer for you, but if you have special requirements, we can customize them.


If you would like to find out more about semi-trailers or make a good deal, you can contact us. We are happy to provide you with all kinds of information and tips so that you can get the most value from your truck.