The RAC Foundation study found prices have on average rocketed by up to 10 per cent more at forecourts in the countryside, when compared to urban areas.
The figures, obtained by the Press Association news agency, show cheats are 'putting other road users at risk', motoring research charity the RAC Foundation said.
A review of official vehicle registrations figures by the RAC Foundation found that the average car on the country's roads at the end of 2024 was nine years and 10 months.