Fuel efficiency metrics for the box trucks for sale are optimized across powertrain types. The Futian Auman electric box truck achieves an energy consumption of 28-32 kWh/100 km under urban delivery cycles (CTEPH cycle), with a 123kWh battery offering a range of 320 km at 50% load. Regenerative braking recovers 15-20% of kinetic energy, extending range by up to 40 km. Diesel-powered models, such as non-electric Dongfeng variants, feature a 4.5L turbocharged engine with common rail injection, delivering 8.2-9.8 L/100 km in mixed traffic (ISO 15118 cycle). Aerodynamic improvements—including cab fairings and underbody skirts—reduce drag by 18%, contributing to a 7% fuel economy gain. For long-haul applications, optional auxiliary fuel tanks (150L) extend operational range to 1,200 km. Real-world data from fleet customers shows electric models save $0.35/km compared to diesel equivalents over 100,000 km annually. Contact our sales team for detailed TCO (total cost of ownership) comparisons, including energy prices, maintenance, and depreciation factors.