header img Logity Dispatch

Fuel Efficiency: Average Fuel Consumption for Semi Trucks

In the world of transportation, where massive objects rule the road, fuel efficiency becomes a paramount concern. Despite ongoing improvements in automotive technology, semi-trucks have never been praised for their exceptional fuel efficiency. After all, moving tens of thousands of pounds requires abundant fuel.

Table of Contents
arrow_down [#338] Created with Sketch.
  • Average MPG for Semi-Trucks: Unveiling the Numbers
  • Finding the Fuel Efficiency Champions: Trucks with Outstanding MPG
  • Factors Influencing Fuel Mileage: Design and Driver Behavior
  • Conclusion

But every additional mile per gallon adds significant savings for your company, especially when spread across a fleet of trucks. Therefore, it is essential to comprehend the average MPG for a semi-truck and investigate methods to maximize fuel efficiency and cut costs. Furthermore, paying attention to the relationship between a truck’s MPG and different fuel-saving strategies is necessary. Now let’s get into the specifics how many miles per gallon does a diesel semi truck get and how to reduce costs efficiently.

Average MPG for Semi-Trucks: Unveiling the Numbers

What is the average miles per gallon for a semi truck? Using powerful trucks to transport heavy cargo over long distances inevitably consumes endless amounts of fuel. The precise amount, however, varies depending on the type of truck, the way the driver drives, and the state of the roads.

Historically, unlike their passenger car counterparts, older trucks could only hope to reach 5 miles per gallon. However, new miles per gallon diesel semi truck efficiency requirements for medium- and heavy-duty trucks in the United States were introduced in 2014 by the Department of Transportation and Environmental Protection Agency, both under the Obama administration.

Since then, a minimum semi truck fuel economy standard of 7.2 miles per gallon has been imposed on all trucks produced after 2014. Nevertheless, the trucking industry comprises a blend of pre-2014 and post-2014 trucks, resulting in an average MPG influenced by the fleet’s composition.

A recent GeoTab report offers an in-depth analysis of MPG averages state-by-state. New Hampshire (6.29), Maryland (6.29), Minnesota (6.31), Nebraska (6.31), and South Carolina (6.33) are a few of the states with the highest MPG averages. States with lower MPG averages, on the other hand, include, among others, Ohio (5.94), Vermont (5.89), New Mexico (5.86), Michigan (5.86), and Pennsylvania (5.86).

Finding the Fuel Efficiency Champions: Trucks with Outstanding MPG

Your vehicles are a sizable investment if you are the owner and operator of a fleet of trucks. Given that brand-new semi-trucks typically cost between $100,000 and $200,000, careful thought must go into the decision. Fuel economy should unquestionably be at the top of your list of priorities, even though many factors go into making a decision.

Let’s look at some of the best semi truck MPG, according to Commercial Truck Trader, to that end:

Freightliner Cascadia Evolution: Boasting an impressive 10 MPG, this truck leads the pack in fuel efficiency.

Peterbilt 570: Shy of 10 MPG, the Peterbilt 570 offers exceptional fuel economy.

Kenworth T680: With a rating of 9 MPG, this truck stands out as an excellent choice for cost-conscious fleet owners.

Mack Pinnacle: Delivering 8 MPG, the Mack Pinnacle combines performance and efficiency.

semi truck fuel

Factors Influencing Fuel Mileage: Design and Driver Behavior

The factors that affect fuel mileage must be determined to implement effective fleet fuel management. You can increase your fleet’s fuel efficiency by considering both heavy truck design and driver behavior. Let’s examine each in more detail:

Vehicle Design: Modern truck models with the best semi-truck MPG feature cutting-edge engineering and design features that can significantly improve fuel economy. Inspect a rig before buying it for features like:

Turbocharged engine: The application of torque as needed in newer turbocharged engines enhances fuel efficiency.

Streamlined design: Aerodynamics plays a pivotal role in overall semi truck fuel economy, with drag reduction contributing up to 50% to efficiency. Trucks with pointed snouts and cabs boast better fuel economy by reducing air resistance.

Tapered trailers: Instead of boxy trailers opt for those with rear-end tapering, as they tend to achieve improved fuel economy.

Automated manual transmissions: Automated manual transmissions minimize driver-induced errors during gear shifting, increasing fuel efficiency by up to 30%.

Driver Attitude: Even with an optimized machine, a driver’s attitude can have a big impact on fuel economy. The average MPG across your fleet can be increased by regularly coaching drivers on fuel-efficient driving practices. The following are some typical areas for driver education:

Speeding: Encouraging drivers to maintain appropriate speeds minimizes fuel consumption.

Rapid acceleration: Discouraging abrupt acceleration conserves fuel.

Hard braking: Encouraging smooth, gradual braking reduces unnecessary fuel waste.

Excessive idling: Educating drivers on the negative impact of prolonged idling helps conserve fuel.

Riding the brakes downhill: Advising drivers to utilize engine braking techniques instead of relying solely on the brakes helps maintain fuel efficiency.

Proper tire inflation: Emphasizing the importance of maintaining optimal tire pressure reduces rolling resistance and improves fuel economy.

Warming up the vehicle: Reminding drivers to limit warm-up periods before driving ensures efficient fuel usage by instilling better driving habits from the outset. Whether through driver training or hiring practices, fleet owners can simultaneously prioritize safety and fuel economy.


For fleet owners looking to maximize their operations, knowing the typical MPG for semi-trucks is essential. While moving large loads over long distances requires significant fuel consumption, truck design, and driver behavior improvements can significantly increase fuel efficiency. Knowing how many miles per gallon does a semi get, fleet owners can unlock significant cost savings while promoting fuel-saving practices among drivers by investing in fuel-efficient trucks like the Freightliner Cascadia Evolution or Peterbilt 570. 
Additionally, utilizing the services of Logity Dispatch can further optimize fleet operations by providing advanced dispatch solutions, route optimization, and real-time monitoring of semi truck fuel range consumption. This comprehensive approach to fleet management can help fleet owners achieve their goals of cost reduction, increased efficiency, and a greener, more sustainable future.