The ‘vapour pressure’ of transport biofuels looks set to become a new battleground in the EU’s fuel quality directive.
The Commission wants to relax a limit on the maximum vapour pressure allowed in transport biofuels to encourage greater use of fuels such as ethanol, and the French presidency has now supported this, subject to an environmental assessment. But environmental groups are calling for caution, as more vapour pressure is likely to mean more air pollution from petrol stations.
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After the battery is depleted, EREVs consume an average of 6.4 litres per 100 km – no better than a conventional petrol SUV, new analysis finds.