Freightliner has announced the availability of fifth-generation Cascadia trucks powered by Cummins X15N natural gas engines, marking a significant shift towards renewable natural gas (RNG) and gas-powered vehicles. The announcement, made at the 2025 Advanced Clean Transportation Expo in Anaheim, California, highlighted the increasing demand for RNG-powered trucks in the market. The Expo showcased industry players like Clean Energy Fuels and Opal Fuels investing in fueling stations and RNG production facilities to support the growing adoption of gas-powered trucks. The X15N engine's availability on Cascadia trucks is seen as a game-changer by industry experts, with expectations of a surge in RNG production facilities to meet the market demand. Companies like Clean Energy, Opal, and Nopetro are ramping up infrastructure, building refueling sites and production facilities to facilitate the widespread use of RNG in the trucking industry. Further emphasis was placed on the advantages of RNG, with no production cap due to abundant feedstock availability. Companies like Opal are already working on creating a refueling experience akin to diesel to ease the transition for trucking fleets. Executives also highlighted the importance of infrastructure development, pointing out the slower adoption rates of alternative technologies like battery-electric and hydrogen fuel cells. Overall, the industry is optimistic about the future of RNG and gas-powered vehicles, with plans for increased production facilities, refueling sites, and a focus on fleet care and maintenance to support the evolving landscape of clean transportation.