It’s fair to say that diesel power has come in for some criticism of late, and while some of what is being said is true for old diesels, the latest cars are cleaner and greener than ever before, and in many cases produce lower levels of pollutants than petrol cars. Mis-information and poor understanding of the complicated diesel subject has led to over-dramatisation and sometimes panic. But hey, in the case of the nationals and some eco-factions, why let the facts get in the way of a sensationalist story. In this month’s issue, we explain why new diesel is the future and what lengths the car makers are going to, to engineer the fuel to exceed the regulations. We explain the differences between Euro-6.1, 6.2 and 6.3 regulations, NEDC and WLTP emissions testing, and also have a helpful section on AdBlue.