The four - cylinder 2.8 L Duramax engine features
technology that you would see on the V - 8 diesel that many late - model diesel owners would be familiar with, including a variable - geometry turbocharger, common
rail direct fuel injection, and B20 bio-diesel capability.
With its all - aluminium power unit, the BMW 740d xDrive boasts BMW TwinPower Turbo
Technology as well as common -
rail direct fuel injection with its piezo - injectors operating at a pressure of up to 2,000 bar.