4x4 Earth - The 4wd, Camping, Fishing And Outdoors Podcast.

We talk to Robert Pepper about the future of Diesel engines in 4 wheel drives.  My last 3 4WDs have had diesel engines and I have loved the economy and reliability of diesels. Vehicle emissions have become increasingly under the microscope as people become more aware of the effects on the environment.  Whilst the fuel economy of diesel has been great (my old Patriot was getting 6.5 liters / 100km) the emissions are a lot dirtier. The United States has never really embraced diesels, nor has the Middle East, but diesels are very popular in Europe. We talk about the Common Rail Diesel design, and how that works. We look at some of the ways that engine designers have tried to make diesel engines more environmentally friendly. Exhaust Gas Recirculation, whereby some of the exhaust gas and how it works to decrease Nitrogen Oxide emissions. Diesel Particulate Filters and how they work. AdBlue, one type of Selective Catalytics Reduction.  We look at how this works, and more importantly, what happens if you run out of