Diesel has had a rough go of it during the last few years, but an increasingly commonplace technology is working to change the fuel's image and make diesel vehicles viable for the future. Kyle Hyatt ...

The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, systems required ...

DEF: Those initials may have caught your eye at the auto parts store, dealership or even your local gas station. And if you happen to have a modern diesel car or truck, you may even have added to your ...

The Iowa House has passed a bill that would impose new state restrictions on farm implement dealerships, giving tractor and combine owners the ability to […] ...

Older diesel trucks sit at the center of a policy fight that touches public health, climate goals, and the economics of freight. Regulators see high-emitting engines as a lingering liability from an ...

With labels stating "diesel fuel only" and the existence of separate gasoline and diesel pumps, most people know there are distinct differences between gasoline and diesel vehicles that go beyond the ...

The Environmental Protection Agency and California Air Resources Board have established that NOx and particulate emissions from diesel trucks have an adverse effect on respiratory and cardiac health.

The Iowa House has passed a bill with new state restrictions on farm implement companies, so the owners of tractors and combines could repair the diesel exhaust fluid systems on the equipment ...