I am looking to replace my Fiat Stilo Estate with a Skoda Octavia Estate and considering one with the 1.6 diesel engine with DPF (Particulate Filter) especially given low road tax. I note your recent articles about problems with filters in other cars and the note in the Skoda brochure about regeneration requiring constant speed above 37mph. I live in rural Dorset so most journeys are on lanes and slower A roads. The salesman says they have had no problems but should I avoid the DPF version and go for the traditional 1.9 instead.