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 ...

If you regularly drive a modern-day diesel-powered vehicle, chances are, you know what Diesel Exhaust Fluid (DEF) is. A crucial component used by most modern vehicles with diesel engines, DEF — which ...

The Environmental Protection Agency plans to stop requiring that diesel trucks automatically reduce power when their emissions exceed certain limits under a proposed rule that would also do away with ...

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 ...

NATSO, representing truck stops and travel centers, and SIGMA: America's Leading Fuel Marketers, questioned the Environmental Protection Agency's (EPA's) proposal to fundamentally alter the regulatory ...

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 wants to change how diesel trucks respond when their emissions equipment runs out of ...

Since 2010, diesel-powered on-highway trucks in North America have been using selective catalytic reduction (SCR) as an exhaust after-treatment technique to control nitrogen-oxide (NOx) emissions. And ...

Since January 1, 2010, on-highway vehicles sold by any truck OEM other than Navistar have been equipped with a selective catalytic reduction (SCR) system using diesel exhaust fluid (DEF). “Therefore, ...

SPRINGFIELD, Mo. (KY3) - Diesel users such as semi-truck drivers and RV owners will soon be paying more for diesel exhaust fluid (DEF). According to RV Business: “Modern diesel requires the injection ...

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 ...

The agency says the changes could save truckers $12 billion while still maintaining environmental protections.