The price of petrol at the pumps has fallen slightly in the last four weeks, AA figures showed on Thursday.
But petrol prices are set to rise again when a planned government 2p increase in fuel duty takes effect on 1 April.
The AA is meeting Treasury ministers to argue that the 2p rise should not go ahead.
Rising petrol prices
Between mid-February and mid-March the average UK price of petrol fell from 90.88p a litre to 90.56p. The average cost of diesel went down from 100.79p a litre to 99.77p.
But since the beginning of the year, average petrol prices have risen 3.41p.
In the last four weeks, three of the four main supermarkets have raised their average petrol prices while most non-supermarket retailers have lowered theirs. Supermarkets remain broadly 1.4p a litre cheaper than the other retailers, although the price gap in many towns is extremely tight.
The cheapest petrol at present – at 90.2p a litre on average – is to be found in northwest England and in Yorkshire and Humberside. Northern Ireland (91.6p) has the most expensive petrol.
AA president Edmund King said on Thursday: ‘On April 1, if the Government goes ahead with its fuel duty hike, it will join local authorities in conveniently forgetting that drivers also face the threat of severe financial hardship from the credit crunch.
‘Many still can’t understand why, even with a 30% loss in the value of the pound against the dollar, petrol is 90p a litre with oil at 45 dollars: in March 2007, the last time UK petrol cost 90p a litre, oil was priced at 68 dollars.’
Which? has put together a petrol versus diesel calculator that lets you work out whether you’d save money by switching to a car that runs on diesel. If that’s not an option for you, read our guide to finding the cheapest petrol, diesel and LPG in your area. We’ve also reviewed greener cars to show you which offer the best value for money.
© 2009 The Press Association