We all know by now that the mandated 2007 and 2010 emissions standard rules radically changed on-highway diesel-powered trucks and tractors. To reduce emissions to satisfy the Environmental Protection ...

We appear to be learning from our mistakes in aftertreatment system maintenance, but we still have a way to go before we’re at peace with the things. Strictly speaking, diesel particulate filters, ...

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 ...