On this episode of Road Gang Radio, host Jimmy Mac welcomes Mike Roeth, Executive Director of the North American Council for Freight Efficiency (NACFE), for an in-depth look at the newly released data from the groundbreaking Run on Less – Messy Middle experiment.

Mike shares early findings from the 14 participating trucks — covering diesel, natural gas, battery electric, and hydrogen fuel cell powertrains — and what this data means for the future of freight efficiency. The Run on Less program highlights the “messy middle” of fleet decarbonization, where fleets are adopting multiple technologies to balance sustainability, cost, and performance.

In the conversation, Mike and Jimmy dive into how each powertrain performed on real-world routes, the evolving role of renewable fuels, and how new innovations like 15L natural gas ...