Motorists are still being hit by rises in petrol prices - even though oil is up to 27% cheaper than in mid-July.

The failure of oil companies to pass on the dramatic drop has led to accusations of profiteering and rip-offs with unions, motoring groups and some politicians calling for windfall taxes on company profits.

The AA said an 18% drop in the wholesale price of petrol has not been fully passed on. It calculates that this should have brought an 8.5p reduction in pump prices.

UK petrol prices hit 119.7p a litre in July, while diesel pump prices peaked at 133.25p a litre. Diesel now costs an average 124.19p a litre after a 0.19p rise this week.

The motoring organisation says that drivers are being overcharged by ‘at least’ 1.7p a litre, which means the average driver is paying £18 too much for fuel each month.

Apparently it takes four to six weeks for changes in the price of oil to work their way through to the pump. In that case, the 25% drop should be bringing prices down at the pump right now. A BP spokesman said: "We are being as competitive as possible and reducing prices where and when we can site by site."

When and where? Site by site? Not good enough BP. It should be across the board now.

Jackie Violet - Female First