Thirteen fleets from across North America, including one Canadian, will take part in the North American Council for Freight Efficiency's (NACFE) Run on Less – Messy Middle. Scheduled to begin on September 8, 2025, this real-world demonstration will focus on evaluating different powertrain options available to long-haul fleets. The participating fleets will feature tractors powered by diesel, natural gas, batteries, and hydrogen fuel cells, showcasing the diversity of powertrain solutions currently available. Fleet profiles will include vehicles from various cities like Laredo, Topeka, Edmonton, Las Cruces, Salt Lake City, Rochester, Rialto, Phoenix, Colton, and Stockton. Data collection during the three-week run will be facilitated through Geotab telematics devices. NACFE's executive director, Mike Roeth, highlighted the importance of this event in showcasing the available powertrain options and promoting innovation in the transportation industry. The event aims to provide insights into the sustainability and efficiency of different powertrain technologies to help fleets make informed decisions. Fleet profiles will be published in August, with stories from the run and live data streaming in September, offering valuable information and real-world performance data on the featured powertrain solutions.