In advance of the next IAA show, Volvo Trucks has unveiled the major orientation of its Euro 6 engines programme. The first engine to undergo this treatment will be the 460 bhp D13 and it will be available from next spring. It is based on the current D13 Euro 5 to which the Volvo engineers have added a particulate filter and an exhaust gas recirculation system (EGR). This latter has one specific characteristic, however: it is not used to cool exhaust gases in order to lower the engine temperature and reduce NOx emissions but in fact to reheat these same gases  in order to obtain an optimal temperature for the catalytic converter (250° C). The EGR should not therefore operate when the vehicle has reached its cruising speed and thus has no negative impact on fuel consumption at that time.