Motorists will be able to buy cheaper petrol at supermarkets from Tuesday.
Four leading supermarkets have announced they are cutting the price of their petrol, with Morrisons also knocking 1p a litre off its diesel.
The reductions follow cuts in the price of supermarket diesel announced last week.
First to announce reductions was Asda, which said it would be reducing the price of its petrol by up to 2p a litre. This will mean Asda customers will pay no more than 133.7p a litre for petrol from Tuesday morning, with Asda diesel staying at 137.7p a litre.
Second to declare was Sainsbury's which said it was also introducing a petrol cut of up to 2p a litre.
Then Morrisons said it would be cutting up to 3p a litre off petrol and 1p a litre off diesel.
The fourth supermarket to announce cuts was Tesco, which is bringing in a cut of up to 2p a litre on its petrol.
AA president Edmund King said: "We predicted these cuts last week, with oil down to its lowest level in a month and the pound gaining on the dollar after its recent fall.
"This is perhaps another glimmer of sunlight for drivers after a hard, wet, pot-holed and expensive winter of driving."
RAC technical director David Bizley said: "Certainly, these price cuts will be widely welcomed by UK motorists and it is encouraging to see that the drop in the wholesale price of fuel is being passed on. We will continue to fight the motorist's corner on this front and campaign for greater price transparency."