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It's a trade off. Diesel engines are more efficient at using the energy in the fuel and as a result produce less CO2. However, diesel engines generally produc
by Ottolay 7y ago
It's a trade off.
Diesel engines are more efficient at using the energy in the fuel and as a result produce less CO2.
However, diesel engines generally produce more NO2 and particulate emissions which causes local pollution. There are technologies which mitigate these pollutants for diesel engines (such as urea injection and exhaust gas recirculation) which are required in the US, but I believe there is less stringent requirements for them in Europe.
- lultimouomo 7y agoAll new diesel cars sold in Europe must have urea injection, EGR and particulate filters (I don't know if the law mandates the actual technologies, but those are the thing you must have to meet the pollution limits). They will allow you to drive only a few kilometers when you run out of urea, basically you are forced to drive to the petrol station to fill it up.
- nradov 7y agoIn a few years those "clean" diesel cars will be sold on the used market in Eastern Europe / Africa / Middle East. At which point the new owners will disable all the pollution control systems to eliminate maintenance hassles.