Originally Posted by
Basil
soay, according to your Transport conversion table, Diesel cars produce less CO2 than petrol
That's why the government promoted diesel engines over petrol, because it's the CO2 emissions which are changing the climate. Diesel contains more carbon per litre than petrol, but that's compensated for by its better MPG. For example, the diesel engined DA40 consumes only 5.6 usg/hr (of Jet-A1) at an IAS of 116 kts.