Truck fuel consumption typically ranges between 22 and 60 litres per 100 km, depending on factors such as vehicle weight, cargo load, engine type, and driving conditions[1]. For most heavy-duty trucks (such as tractor-trailers used for long-haul transport), the average is around 30 to 40 litres of diesel per 100 km[2][7]. For example, a typical European tractor-trailer consumes about 32.6 l/100 km, with the most efficient models reaching around 29.9 l/100 km[5].
For comparison, lighter commercial trucks may use less fuel, averaging as low as 9 litres per 100 km for vehicles under 3 tonnes[2]. Compact and midsize pickup trucks generally achieve below 12 L/100 km, and full-size pickups that achieve under 11 L/100 km are considered efficient by consumer standards[3][4].
Key factors affecting truck fuel consumption include:
- Weight and payload: Heavier loads increase fuel use.
- Driving conditions: Highway, urban, and terrain differences impact efficiency.
- Engine type and technology: Diesel engines are generally more efficient for heavy-duty applications; modern engines and aerodynamic improvements further reduce consumption[6].
- Driving style: Aggressive acceleration, excessive idling, and improper use of cruise control can increase fuel use[7].
To calculate a truck’s average fuel consumption, divide the total fuel used by the distance traveled, then multiply by 100 (for 100 km)[1].
References
- [1] How much fuel does a truck consume per 100 km?
- [2] Truck Diesel Use Per Mile | Fuel Calculator
- [3] Most fuel efficient trucks in 2024 & 2025
- [4] Our 5 Favourite Fuel Efficient Trucks
- [5] Comparison of fuel consumption and emissions for …
- [6] Fuel Efficiency Benchmarking in Canada’s Trucking Industry
- [7] Truck fuel efficiency — Webfleet GB