We’re just now beginning to accept that we have to do things differently from what we have always done in order to maintain our aftertreatment systems. We’ve had 14 years to figure it out, yet diesel ...

Government agencies and car manufacturers have worked to reduce the emissions and harmful gases in our air over the last few decades. Automakers downsized car engines and pushed EVs, while the ...

• New diesel-emissions regulations for off-road equipment took effect in January. • All engine manufacturers are tuning incylinder combustion to minimize emissions. • Where exhaust aftertreatment is ...

Increasingly stringent diesel engine exhaust emissions regulations have, over the past 20 years, reduced output of nitrogen oxides (NOx) by 95% and particulate emissions by 90% in heavy trucks. These ...