FedEx Freight Plans More RNG Tractors, Ties Sustainability to ROI
John Smith says renewable natural gas expansion hinges on business case — fleet will add RNG units only when TCO pencils out against diesel baseline.
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Westport HPDI Natural Gas Engine Can Switch to Hydrogen Later
High-pressure direct-injection engine runs on CNG or RNG today, accepts hydrogen blend or 100% H2 tomorrow — no fuel-cell purity requirement.
Shell Starship 3.0 Natural Gas Demo: What the Fuel Shift Means for Fleets
Shell's decade-long Starship program pivots from diesel to natural gas as RNG infrastructure expands and low-carbon fuel mandates tighten. What the shift…