Trucks spend too much fuel while traveling primarily due to the aerodynamic drag on the trucks. Additionally, truckers keep their engines idling for long periods to keep the cabin comfortable while they rest.
Aerodynamic Packages - The US Energy department estimates that 1/2 of a truck's fuel goes to eliminating aerodynamic drag. By adding fairings to the front, side, and rear of the truck it is estimated the truck can get a 8-12% better energy efficiency.
Auxillary Power Unit - Instead of running the engines at night to heat or cool the cabin inefficiently, an auxiliary power unit can be run instead to provide cabin comfort efficiently.
Mack fuel economy may be blowin' in the wind
International Truck and Engine reduces aerodynamic drag...
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| Cite as | Sgoals (2007–2025). "Trucking energy efficiency". Appropedia. Retrieved October 3, 2026. |