Diesel V Petrol and CO2

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Tue 19 Aug 2008 21:29
Diesel V Petrol and CO2 - Pendlebury
This is rather interesting.
I wonder of it will result in a rethink on diesel and CO2 emmissions.

www.channel4.com/4car/ft/feature/feature/15594/2

It states that "The problem is that diesel cars emit more carbon dioxide per litre of fuel burnt."

Edited by Dynamic Dave on 19/08/2008 at 21:42

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Tue 19 Aug 2008 22:03
Diesel V Petrol and CO2 - Tyrant
Thank goodness I drive a diesel then. With the world cooling the way it is something needs to encourage plants to grow more robust and productive to help feed the growing population of the earth.

Raised CO2 should help a bit but extra warmth would be even better. Never mind it will no doubt sort itself out.

Unfortunately the vast areas of Russia and Canada that are marginal for crops now will have to wait for the world to warm up significantly before they can play their part in feeding the world.

Climatically what will be will be ,same as always.

Edited by Webmaster on 20/08/2008 at 01:48

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Tue 19 Aug 2008 22:09
Diesel V Petrol and CO2 - b308
Why? The result for the petrol and hybrid in the test was equally as damming as the diesels! Also I suspect that if they did the same test for Band C cars they would probably be up in the next band as well - all it does is tell us what we already knew, that the figures quoted are only guides and that they are purely there so we can compare like with like....

Interesting that their figures for the Fabia Greenline are the same as I've got with the standard 1.4TDi 80 in estate form, confirms that its not worth buying the "green" specials as in real life driving they are no more efficient than the standard version but cost over a grand more!
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Tue 19 Aug 2008 22:20
Diesel V Petrol and CO2 - cjehuk
And this is news? Diesel is has a higher specific weight than petrol because it contains heavier hydrocarbons hence more carbon. Diesel also contains more energy per litre than petrol so you need less of it to get the same performance.

Ultimately a diesel should produce less CO2 through getting more mpg, but if both cars return the same mpg the petrol will produce less CO2 because less carbon went in.
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