[JK23112]

We have some Sterling and Hino trucks at work that all have the DPF. While these are "heavy" trucks, the principle is the same.

One of the trucks I drive often is a 2008 Sterling with the Cummins ISC 8.3L, and it goes into "regen" mode two or three times every 200 miles (less than one day of driving for me). I think this is way too often, as most of our other trucks do it maybe once a week.


It smells bad, puts out hot exhaust and runs rough whenever the amber indicator light on the dash turns on. The fuel mileage on our DPF-equipped trucks is simply awful (about 6 mpg for tandem axles & 7.5 to 8 mpg for single axles), so I hardly think that it can be good for the environment.