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 ...

Aftertreatment system maintenance is proving to be more costly than tire maintenance, making it possibly the single most expensive maintenance item on today’s trucks. Parts costs are prohibitive, the ...