In 2009, Opel will introduce one new 1.6-liter turbo CNG engine (Compressed Natural Gas) with around 110 kW/150 hp and 210 Nm of torque. Developed by GM Powertrain in Turin, the new unit joins Opel’s current aspirated CNG engine, which has the same displacement and an output of 69 kW/94 hp. Key features of the new CNG engine include a turbocharger integrated into the exhaust manifold, an intake manifold with gasoline and CNG fuel pipes, an oil cooler and piston cooling. By virtue of their propulsion units, natural gas-powered Opel vehicles produce 80 percent less nitrogen oxide than a diesel, and almost 20 percent less CO2 than a gasoline model (nearly 10 percent less CO2 than diesel). Furthermore, the exhaust gases contain almost no soot particles.
