Need to idle the diesel engine in a late-model medium-duty truck longer than five minutes in California? Then you’ll need to find a rig with this sticker. Truck drivers idle their engines for lots of ...

California's strict limits on diesel idling will affect more trucks starting in January, but at least two builders say their diesels will be exempt from the rules. California's strict limits on diesel ...

The complete line of Cummins truck diesels can now meet Clean Idle requirements in California, allowing those engines to idle beyond the state Air Resources Board's five-minute limit, the builder ...