| Hi all, I currently have a 2007 Mazda 5 2.0 diesel which I am planning on replacing with either a Zafira tourer or Ford S-Max. One thing I have never liked about my Mazda is the fact that it dumps un-burnt fuel from failed DPF regens into the oil sump.  Does anyone know if the Zafira tourer and S-Max also do the same?  I found a copy of the Zafira tourer manual on line and the section about the dip stick doesnt mention anything about increasing levels. There is a little voice in my head that keeps saying 'forget the diesel and DPF, go for a petrol'. Alan |