The Iowa House advanced a bill Monday that would allow farmers to disable the diesel exhaust fluid, or DEF, systems required by federal emissions laws. House File 2529 would require manufacturers of ...

The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...

Shell Rotella has introduced its own Diesel Exhaust Fluid, designed for on-highway medium- and heavy-duty trucks as well as off-highway construction equipment and trucks. Shell Rotella has introduced ...

The Environmental Protection Agency continues its crusade to roll back truck emission regulations. The latest move is a doubling down in its efforts to reform diesel exhaust fluid (DEF) rules. For ...

The United States Environmental Protection Agency has changed its tune on diesel trucks under the current administration. Whereas previous versions of the EPA pursued massive penalties and even ...

EPA is requiring diesel engine manufacturers to submit DEF system warranty, failure, and repair data as part of a broader effort to assess ongoing performance and reliability issues affecting ...

MADISON — State Rep. Clinton Anderson joined other Democratic state lawmakers on Monday in introducing legislation to legalize and regulate cannabis for adult use in Wisconsin. The bill, LRB-4219, ...

Nearly 200 years ago, the physicists Claude-Louis Navier and George Gabriel Stokes put the finishing touches on a set of equations that describe how fluids swirl. And for nearly 200 years, the ...

We may receive a commission on purchases made from links. The government's strict emissions limits for combustion-powered vehicles have pushed automakers to develop technologies that let their engines ...

The Environmental Protection Agency is revising the requirements for diesel exhaust fluid or DEF, which has affected members of both the agriculture and trucking industries. EPA Region 6 Administrator ...