Under government pressure to make pump prices transparent, the fuel industry will have to prove in the future that UK drivers are paying a fair price for fuel, the AA said.
In the past month, the average pump price of diesel has fallen 4.99p a litre, from 144.30p in mid May to 139.31 now. But UK diesel costs at least 4p a litre more than in Europe.
More top news
Star Trek's Captain Kirk has told fans his daughters Melanie and Lisabeth will be attending Leonard Nimoy's funeral on his behalf.
It is going to feel far from spring-like other the next few days as we head into March.
Sam Galsworthy, uncle of missing Becky Watts, has spoken about the family's anguish as the search for her continues and they wait for news.