The days of brand-new production vehicles spewing massive black clouds of diesel exhaust fumes are over, largely thanks to the introduction of diesel exhaust fluid and selective catalytic reduction.

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...

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 ...

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 ...

If you live in the United States and own an internal-combustion vehicle, you almost certainly use gasoline rather than diesel fuel. But that doesn't mean diesel isn't widely used. On the contrary, the ...

Black carbon particles, found in diesel engine exhaust, are 3,200 times more damaging to the climate than carbon dioxide in the near-term and promote cardiovascular disease and lung cancer. By ...

Parents living along truck routes say they’re trapped between Canada’s busiest port and government inaction. Health experts ...

Diesels have an edge on gasoline engines when it comes to fuel economy, but compression-ignition engines need extra help to meet America’s emissions regulations. Higher peak-combustion temperatures ...

Selective catalytic reduction technology uses ammonia to break down NOx emissions produced during diesel combustion into nitrogen and water. SCR has become the technology of choice for a majority of ...

Fake exhaust notes are becoming a trend with carmakers recently. The trend started once sports cars became more and more silent as their platforms progressed. While customers who cared about cars with ...