Quote:
Originally Posted by JSH
It isn't the volume of fuel going into the tank that matters it is the weight of the carbon coming out of the exhaust. Burning a gallon of gasoline creates 8.8 kg of CO2. Burning a gallon of diesel creates 10.1 kg of CO2. A gallon of diesel produces 15% more CO2 than a gallon of gasoline because diesel is more energy dense than gasoline. When regulatory bodies around the world started regulating g/km of CO2 they took away the advantage that diesel cars have by burning more energy dense fuel.
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Since a lower volume of Diesel is consumed per distance travelled, it may either match the COČ emissions of a gasser or remain advantageous on that matter. What's really becoming troublesome are the NOx emissions.