Comment by SideburnsOfDoom
9 years ago
For instance, For a long time diesel has promoted in Europe as greener than petrol. This is soon to change, because: https://www.theguardian.com/uk/2013/jan/27/diesel-engine-fum...
9 years ago
For instance, For a long time diesel has promoted in Europe as greener than petrol. This is soon to change, because: https://www.theguardian.com/uk/2013/jan/27/diesel-engine-fum...
Diesel engines produces less CO2 by being slightly more efficient.
Pretrol engines produce less nitrogen oxides and particulate matter.
What's "greener" is just a matter of your definition of it.
> What's "greener" is just a matter of your definition of it.
What i means was that the "promoted" part is soon to change, because of the greater understanding of the drastic public health consequences.
Diesel /is/ greener when you consider only CO2 emissions and energy efficiency, although turbocharged direct injection engines narrow that gap significantly. If this were the '70s though, I'd much rather have a fleet of diesel cars running around than ones with cabureted gasoline engines.
What about all the people who die from diesel particulates? Failing to consider that is exactly the mistake Europe is still making.
Particulates are easy to deal with using current technology--burn lean, burn hot (and inject lots of urea to get rid of all the NOx that this regime creates), and stick on a filter on the tailpipe to get rid of the stuff that does get created. The main problem is that diesel engines last forever, and a lot of old engines that don't meet requirements are still on the road.
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