Diesel Engines And Vehicle Performance Metrics Essay

1967 Words Dec 16th, 2016 8 Pages
In the automotive world, efficiency and power are two elements of vehicle performance metrics that while important to many consumers and critics alike, appear to be elusive when in convolution with one another. In automotive history, good fuel efficiency equaled compromises in power and performance and vehicles with large displacements and torque usually had worse gas mileage. The exception to this rule were diesel engines, which managed to combine better efficiency than many four-cylinder gas engines while providing very high torque number for better performance. The main drawback that diesel’s faced was due to their stigma of being dirty, as they emitted more greenhouse gases including nitrous and sulfur oxides. Coupled with the stricter emissions that many states began to implement, primarily overseen by the EPA, it became harder for car manufactures to certify diesel engines for emissions while maintaining high fuel economy and power output figures. The emission control hardware and software in diesel vehicles also came at a high price and with increased complexity, both unwelcoming additions for any car company wanting to mainstream diesel’s. Volkswagen Automotive Group (VAG) pledged to change these preconceived notions concerning power and efficiency with the debut of the clean diesel technology in 2008 within select models. These vehicles had miraculously managed to decrease emissions out of vehicles with diesel motors while not compromising on the power and…

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