How Does Benz Say Clean Diesel?
For 2009, the GL and its two stable mates are offered with a 210-horsepower, 3.0-liter turbocharged, direct-injection V6 diesel—as well as a 4.6-liter V8 engine. As the world’s first carmaker to offer a passenger diesel—way back in 1936—Mercedes-Benz is determined to offer diesels in many of its US vehicles despite their historic status as niche vehicles. The 3.0-liter turbodiesel uses the company’s “BlueTec” suite of pollution control devices, including particulate filters and two catalytic converters. It also injects liquid urea into the exhaust stream, using the chemistry to cut oxides of nitrogen (NOx) emissions, which along with particulates form the Achille’s Heel of modern diesel engines. The diesel gets respectable mileage for an 18-foot-long vehicle that weighs 5,300 pounds. The GL320 BlueTec is rated by the EPA at 17 mpg city / 23 mpg highway, an improvement of 24 percent and 22 percent respectively against the V8 model’s 13 mpg city / 18 mpg highway. As with many new diesels
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- How Does Benz Say Clean Diesel?
