Diesel exhaust fluid is essential for keeping your engine functioning without letting off too many emissions. But it doesn't do well in the cold; here's why.

Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust ...

Diesel engines are disappearing from smaller cars and SUVs in the U.S. thanks to a series of emissions scandals since Dieselgate. But there are still plenty of heavy-duty pickups and larger trucks ...

Added information on DEF / DPF system history for on-road and off-road diesel-powered vehicles and equipment. The run of ...

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 ...

For many years, owners of three-quarter and one-ton pickup trucks enjoyed the fact that there was no smog equipment on their trucks. But in 2008 the EPA required diesel particulate filters on all ...

For more information, please see EPA’s Diesel Exhaust Fluid. Since 2010, most on-road diesel trucks and many types of nonroad ...

If a truck driver wants to save a few bucks by running some of its miles without diesel exhaust fluid (DEF), it’s now going ...

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 ...

At the White House Great American Agriculture Celebration, President Trump announced another decisive action U.S. Environmental Protection Agency Administrator Lee Zeldin has taken to address ...

According to the Farmer's Almanac, the winter of 2020 will be filled with bitterly cold weather from the eastern parts of the Rockies and east to the Appalachian Mountains and Northeast U.S. However, ...