"Fleets everywhere are continuing to explore a seemingly endless list of new and creative options for improving fuel economy, reducing emissions, and advancing sustainability solutions. It’s now more the norm than the exception.
"Among their efforts are shifting to alternative fuel sources, or for the traditional diesel-powered vehicles, moving to downspeeding the engine, downsizing the engine, adding aerodynamic devices, and spec’ing low rolling resistance tires and other fuel-saving systems.