The month of June saw a new record rise in the price of a liter of petrol, adding £9 to the cost of filling up.
RAC analysis shows the average cost of a liter of fuel in UK forecourts rose 16.6p last month from 174.8p to 191.4p. This is the highest monthly increase on record since 2000.
The rise in prices added more than £9 to the cost of filling up a typical 55-litre family petrol car, which is now £105.29.
Average diesel prices rose by 15.6p per liter to end the month at 199.1p. This makes the cost of the tank £109.48, £8.59 more than at the start of the month.
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“To put things into perspective, average unleaded prices are 26.84p higher per liter than the day after March’s fuel duty cut was announced (164.59p on March 24), with a full tank costing around £15 (£14.77) more expensive,” the RAC said.
Simon Williams, the firm’s energy spokesman, said: “The rate at which pump prices have been rising over the past four weeks is hard to fathom.
“Petrol prices did not rise even for a single day in June, even as the price paid by retailers to buy the fuel came down.
“There is no doubt that drivers are getting an incredibly raw deal at the pumps at a time when the cost of living crisis is being felt most acutely.”
The RAC said higher pump prices are expected in early June as the cost of oil rises in response to increased demand and continued supply concerns related to the war in Ukraine.
But wholesale spending has not been reflected at the pumps after five consecutive weeks of decline.
According to the RAC, retailers have more than doubled their average profit margin from a long-term figure of around 6p to 12p per litre.
Williams added: “The silence from the Treasury to support drivers through record high pump prices at this time is, frankly, deafening.
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“Perhaps this has something to do with the fact that it is benefiting substantially from the increased VAT revenue resulting from higher prices.
“We need the government to go beyond just vague words and instead implement a clear package of financial support to show they are on the driver’s side.”
Dozens of campaigners were arrested on Monday as they called for another cut in duty on the M4 in South Wales and Somerset and a stretch of the M5 from Devon to Bristol.
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