Direct injection is exciting technology in that it allows car enthusiasts to have their cake and eat it too. How so? By both improving fuel efficiency and increasing horsepower. This being the ...

Offering the same power output as the outgoing models, the four-cylinder engines with direct petrol injection therefore impress with their higher torque, meaning that the new Mercedes-Benz models ...

The OM series engines share many features ... Features like a graphite iron engine block and a high-pressure direct injection fuel system known as MultiJet II helped earn the 3.0-liter EcoDiesel ...

Diesel engines operate at higher compression ratios than gasoline engines, and fuel is injected under much higher pressure. An injection pump, usually driven by a belt or chain linked to the ...

Carbon buildup is more common in direct-injection engines than in port-injected engines for one simple reason: Direct injection systems inject fuel directly into the combustion chamber ...