Quote:
Originally Posted by gen2c4s
My other interest is how they make their engines cleaner. If a car burns deisel then my logic says that no matter how you ignite the fuel it must give off the same waste gas, so in my mind a litre of deisel burnt in a X5 will give the same waste product as a litre of deisel burnt in a 1980s ford escort diesel. If that is true does the cleaning up bit just come from the exhaust?
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You are right. If you burn a litre of diesel you give off the same amount of CO2 no matter what. The difference is that a modern turbo diesel makes far more power and torque from each litre of diesel it burns than a 1980s diesel. In addition modern diesels reduce emissions of particulate matter, NOx and other bad stuff via DPFs, urea injection etc