The diesel particulate filter (DPF) has continued to improve over its 15-year existence. So have other components of aftertreatment systems (ATS) that help send cleaner exhaust through the DPF.

If you own a diesel car, chances are it's fitted with a Diesel Particulate Filter — DPF for short. They can be a source of problems but our guide will help you avoid them. How Diesel Particulate ...

This story appears in the May 27 print edition of Transport Topics. Retrofits of diesel particulate filters onto older vehicles that never had them will take a jump in 2014, when California’s rule ...

The biggest complaint from owners of the earlier X-Trail turbo-diesel was a lack of low-down torque which gave the car a lazy feel when accelerating from rest. Nissan actually issued a Technical ...