The RAC has accused supermarkets of "taking advantage" of motorists by failing to lower their petrol prices to reflect a drop in wholesale costs.
The motoring company said that drivers are still being charged "unnecessarily high" costs for fuel at the major supermarkets, with average prices currently standing at 161.0p per litre for petrol and 184.4p for diesel. This is only around 2p lower per litre than the average for all forecourts across the UK, whereas supermarkets typically charge about 3.5 per litre less than the UK average.
The RAC said that supermarkets' profit margins for petrol and diesel are around 15p per litre. It has previously called on the four major supermarkets to lower their pump prices, saying earlier this year that the gap between wholesale prices and what drivers are paying has widened to its largest in a decade.