RAC reacts to latest supermarket fuel price cuts

RAC fuel spokesman Simon Williams suggested motorists might even see a return of GBP1-a-litre diesel.

"July was a bumper month for diesel vehicle drivers with the average price falling by 5p a litre, saving GBP3 on a fill-up," he said.

"Now August is off to a flying start with another substantial cut which will help shave another couple of pounds off a tank of diesel, just as millions of people head off on holiday by car.

"With oil prices just under the 50 dollars a barrel mark, there's every chance even more cuts are just around the corner. And, if oil stays low and wholesale diesel remains abundant, we could even have a chance of seeing GBP1 a litre diesel."