You may have noticed that diesel drivers tend to idle their engines after driving, typically when finishing a journey, instead of switching off the engine immediately. This action may seem lazy or ...

The best way to save fuel and the environment— and avoid costly fines for violating anti-idling laws—is to turn those engines off whenever possible. Shutting down engines is not only better for the ...

As fans left Wrigley Field after a late-season Cubs loss to the St. Louis Cardinals, they were greeted by clouds of noxious diesel exhaust from charter buses idling outside the ballpark, some for ...