
Fuel costs are a significant expense for 18-wheeler owner-operators, and these costs can vary depending on several factors. As of April 4, 2022, the average national diesel fuel cost was $5.144 per gallon, but prices differ across regions, with Gulf Coast states paying an average of $4.929 per gallon and California residents paying around $6.289 per gallon. In 2021, the average owner-operator spent $45,605 on fuel for the entire year, with this figure fluctuating based on the type of freight and weight hauled. For example, reefer owner-operators spent a higher percentage of their revenue on fuel (28.3%) compared to dry van operators (23.2%). Additionally, fuel haulers have explored ways to increase payload and reduce weight, such as switching from steel to aluminum wheels, to maximize profits and minimize fuel costs.
| Characteristics | Values |
|---|---|
| Average national diesel fuel cost per gallon (as of April 4, 2022) | $5.144/gallon |
| Average fuel cost per gallon in Gulf Coast States (as of April 4, 2022) | $4.929/gallon |
| Average fuel cost per gallon in California (as of April 4, 2022) | $6.289/gallon |
| Average amount spent on fuel by owner-operators in 2021 | $45,605 |
| Average amount spent on fuel by dry van owner-operators in 2021 | $45,416 |
| Average amount spent on fuel by reefer owner-operators in 2021 | $56,165 |
| Average amount spent on fuel by flatbed owner-operators in 2021 | $43,127 |
| Estimated average amount to be spent on fuel by owner-operators in 2022 | $41,632 |
| Percentage of revenue spent on fuel by all owner-operators in 2021 | 23.4% |
| Percentage of revenue spent on fuel by dry van owner-operators in 2021 | 23.2% |
| Percentage of revenue spent on fuel by reefer owner-operators in 2021 | 28.3% |
| Percentage of revenue spent on fuel by flatbed owner-operators in 2021 | 30.4% |
| Additional delivery charge for an 18-wheeler carrying 75 gallons extra due to aluminum wheels | $0.045/gal |
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What You'll Learn
- Average national diesel fuel cost: $5.144/gallon (as of April 4, 2022)
- Fuel costs as a percentage of revenue: 23.4% (average for 2021)
- Total fuel costs: $45,605 (average for 2021)
- Fuel savings: Lighter trucks mean more profit
- Regional fuel cost variations: Gulf Coast states ($4.929/gallon) vs. California ($6.289/gallon)

Average national diesel fuel cost: $5.144/gallon (as of April 4, 2022)
As of April 4, 2022, the average national diesel fuel cost was $5.144 per gallon in the United States. This cost can vary depending on the region. For instance, in the Gulf Coast States, the average diesel price was $4.929 per gallon, whereas in California, it was considerably higher at $6.289 per gallon.
Fuel costs are a significant expense for 18-wheeler owner-operators, often representing the highest controllable cost. The total fuel expenditure depends on various factors, including the type of freight and weight hauled, and the number of miles driven.
In 2021, the average owner-operator spent $45,605 on fuel for the entire year. Dry van owner-operators expended $45,416, reefer owner-operators spent $56,165, and flatbedders spent $43,127. For the first quarter of 2022, the average owner-operator's fuel costs annualized to $41,632, indicating a potential decrease in fuel spending for the year.
When examining fuel costs per mile, the average owner-operator spent 48 cents per mile in 2021. Dry van operators incurred 45 cents per mile, reefer operators 51 cents, and flatbedders 52 cents. The first quarter of 2022 showed a slight decrease in fuel costs per mile for all categories, with the average owner-operator spending less than 48 cents per mile.
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Fuel costs as a percentage of revenue: 23.4% (average for 2021)
For owner-operators, fuel is the most expensive controllable cost. The average owner-operator spent 23.4% of their revenue on fuel in 2021. This figure varies depending on the type of freight and weight hauled. For example, dry van owner-operators spent 23.2% of their revenue on fuel, while reefer owner-operators spent 28.3% and flatbedders spent 30.4%.
To calculate the percentage of revenue spent on fuel, divide the total fuel costs by the total revenue generated over the same period. Fuel costs can also be viewed as a total dollar amount spent over a period, which for 2021 was $45,605 on average. Again, this varies depending on the type of freight and weight. Dry van operators spent $45,416, reefer operators spent $56,165, and flatbedders spent $43,127.
Fuel costs can also be considered in terms of cost per gallon. As of April 4, 2022, the average national diesel fuel cost was $5.144/gallon. This varies by region, with the Gulf Coast States having lower prices at $4.929/gallon, and California higher at $6.289/gallon.
There are ways to reduce fuel costs, such as switching from steel to aluminum wheels, which can save around 450 lbs or 75 gallons of fuel. This allows for more payload, enabling higher charges without increasing costs.
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Total fuel costs: $45,605 (average for 2021)
For owner-operators, fuel is the most expensive controllable cost. The total fuel costs for 2021 averaged $45,605, with variations depending on the type of freight and weight hauled. Dry van owner-operators, for instance, spent $45,416 on fuel, while Reefer owner-operators spent $56,165, and Flatbedders spent $43,127.
The fuel costs can also be viewed as a percentage of revenue, and in 2021, the average owner-operator spent 23.4% of their revenue on fuel. Again, this number varies depending on the type of freight and weight. Dry van operators spent 23.2%, Reefer operators spent 28.3%, and Flatbedders spent 30.4%.
Another way to calculate fuel costs is by determining the cost per mile. This is calculated by dividing the total fuel costs by the total number of miles driven over the same period. As of April 4, 2022, the average national diesel fuel cost was $5.144 per gallon, with regional variations, such as $4.929 per gallon in the Gulf Coast States and $6.289 per gallon in California.
To optimize fuel efficiency, some 18-wheeler operators have considered switching from steel to aluminum wheels, reducing weight by about 450 lbs and allowing for an extra 75 gallons of fuel to be hauled, potentially increasing payload and profits.
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Fuel savings: Lighter trucks mean more profit
For truckers, fuel is the most expensive controllable cost. In 2021, the average owner-operator spent $45,605 on fuel, with this figure varying depending on the type of freight and weight being hauled. For example, dry van owner-operators spent $45,416 on fuel, while reefer owner-operators spent $56,165. As a percentage of revenue, the average owner-operator spent 23.4% of their revenue on fuel in 2021, with this figure rising in the first quarter of 2022.
Given the significant costs associated with fuel, finding ways to reduce fuel consumption can lead to substantial savings. One way to achieve this is by reducing the weight of the truck. For instance, switching from steel to aluminum wheels on an 18-wheeler can save approximately 450 lbs, allowing for the carriage of an extra 75 gallons. This additional payload can be charged to the customer at the rack price plus margin and an additional delivery charge, resulting in increased profit without a corresponding increase in fuel costs.
Another strategy to optimize fuel efficiency is to consider the number of batteries, compartments, and hoses on the truck. Removing unnecessary weight can improve fuel economy and reduce overall fuel expenses. Additionally, analyzing fuel costs on a per-gallon or per-mile basis can help identify regions with more favorable fuel prices. As of April 4, 2022, the average national diesel fuel cost was $5.144/gallon, with regional variations such as $4.929/gallon in the Gulf Coast States and $6.289/gallon in California.
By implementing weight-reduction strategies and making informed fuel purchasing decisions, truckers can significantly impact their bottom line. Lighter trucks not only improve fuel efficiency but also enable the carriage of additional payload, translating directly into increased profit. Furthermore, staying informed about fuel prices and trends can help truckers make strategic fuel purchases and further maximize their savings.
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Regional fuel cost variations: Gulf Coast states ($4.929/gallon) vs. California ($6.289/gallon)
The cost of fueling an 18-wheeler varies across different regions in the United States. For instance, as of September 2024, the price of gasoline in Gulf Coast states was $4.929 per gallon, while it was significantly higher in California, at $6.289 per gallon. This price differential can be attributed to several factors, including variations in regional refinery operating costs, transportation costs, and state gasoline taxes.
California's gasoline prices are notoriously volatile due to the high operating capacity of its refineries. The state's refineries need to run at near full capacity to meet the gasoline demand. If multiple refineries experience operational issues simultaneously, the gasoline supply tightens, leading to substantial price increases. Additionally, California's geographical location on the West Coast contributes to higher transportation costs when receiving supplies from other West Coast refineries, U.S. Gulf Coast refineries, or foreign refineries. The time taken for these supplies to reach California can also impact the stability of gasoline prices in the state.
In contrast, the Gulf Coast states benefit from their proximity to oil production and refining centers. The region boasts a dense network of refineries and pipelines, allowing for efficient transportation and distribution of gasoline. This streamlined infrastructure helps keep fuel prices relatively lower compared to other regions in the country.
Another factor influencing the regional fuel cost variation is the difference in state gasoline taxes. Each state sets its own tax rate, which contributes to the overall price at the pump. California has a higher gasoline tax rate compared to the Gulf Coast states, which is reflected in the higher pump prices seen in the state.
The dynamic nature of fuel pricing, influenced by market conditions, supply and demand fluctuations, and regional variations, presents a challenge for truckers and fleet owners in managing their fuel costs. Understanding these regional fuel cost variations is essential for making informed decisions, optimizing routing, and mitigating the financial impact of fueling their 18-wheelers.
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Frequently asked questions
The cost of fueling an 18-wheeler depends on various factors, such as the region, the type of freight, and the weight being hauled. As of April 4, 2022, the average national diesel fuel cost was $5.144 per gallon in the US.
You can calculate the cost of fueling your 18-wheeler by considering the cost per gallon of diesel fuel in your region and multiplying it by the number of gallons required to fill your tank.
Yes, you can look at fuel costs as a percentage of revenue. For example, in 2021, the average owner-operator spent 23.4% of their revenue on fuel. You can also calculate the cost per mile by dividing your total fuel costs by the total number of miles driven over the same period.
The average owner-operator spent $45,605 on fuel in 2021. This amount varies depending on factors such as the type of freight and weight hauled. For example, Reefer owner-operators spent $56,165, while Flatbedders spent $43,127.
One way to reduce fuel costs is to consider switching from steel wheels to aluminum, which can save about 450 lbs, allowing you to carry an extra 75 gallons and increase your payload without increasing costs. Additionally, staying up-to-date with maintenance and utilizing fuel-efficient driving practices can also help reduce fuel costs.









































