located on the DPF. It uses in-cylinder post injections via the main 5 injectors to create the regeneration. The 2016 UR Mazda BT50 3.2L on the other hand, uses a different system, the Down Stream Injection (DSI). Funnily enough this system is commonly found on other Ford models including Kuga, Mondeo, Focus and Transit.. 238 240 355 5 21 231 349 222 291