DPF BLOCKED 453553 https://www.dpf.nz en-nz DPF 30 DPF Blocked https://www.dpf.nz/blog/662430 We see all sorts of DPF filters from all makes coming to us to be cleaned ,Some are just old and need to be cleaned and refreshed to remove the ash build up that happens over time .Some of the DPF filters we see are badly blocked This is not good and can lead to engine oil being diluted with diesel . This can be caused from a few things . 035, 24 Aug 2008 00:00:00 +1200 https://www.dpf.nz/blog/662430