How the exhaust systems on 2.0L TDI “Clean Diesels” work, and why they matter if you want to understand “Dieselgate” and how VW cheated emissions testing. In 2009, VW released its new “Clean Diesel” TDIs, which were designed to meet the changing  BIN5/LEV2 emissions requirements implemented by the EPA. VW TDIs were unable to meet … Continue reading DIESELGATE Series – DPF Technical Description