I am wondering if anyone with problems getting their DPF to regenerate is running Biodiesel at B20 or higher. National Renewable Energy Labs (NREL) has done some pretty extensive testing on Biodiesel and the new emission standards. They found that running B20 or higher blends allowed the DPF to flash off at much lower temps, possibly low enough not not require a special burnoff. They used a Cummins ISB with a DPF for their testing. It would be cool if simply running B20 eliminated active regenerations in actual use (not just lab tests).
Also, I saw a few posts back a reference to the new urea injection systems everyone is considering for 2010. They are going to be used to reduce NOx emissions and won't replace DPFs.
Joe
Also, I saw a few posts back a reference to the new urea injection systems everyone is considering for 2010. They are going to be used to reduce NOx emissions and won't replace DPFs.
Joe