EPA Lets Truck Makers Raise DEF Limp-Mode Speed to 25 MPH
PACCAR and Daimler are rolling out software updates that extend DEF fault timelines to 160 hours and raise final derate speed from 5 mph to 25 mph, following…
#Emissions
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Volvo Pays $196.5M CARB Settlement Over NOx Emissions
California Air Resources Board settlement is the latest in a series targeting truck and engine manufacturers for nitrogen oxide violations.
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…