Australians would be urged to tackle a fuel shortage by carpooling and using electric vehicles under the government’s emergency fuel plan, while more extreme measures would ration fuel by shutting petrol off at the pump once a daily allowance was exceeded. The plan, devised in 2019 by the Department of Environment and Energy before the war in Iran strangled about 20 per cent of global oil supply, reveals the lifestyle changes that could be imposed on Australians to ease demand. Prime Minister Anthony Albanese has assured Australians that shipments of oil have been arriving onshore as planned, but the industry has sounded the alarm the nation’s fuel supplies are heading for a cliff by the end of April. As petrol prices continue to climb, hitting a record high of an average of $2.38 a litre, and the conflict in the Middle East drags on, state premiers have urged the government to lead a national response.…