ASDA has cut the price of petrol sparking an all-out price war with supermarket rivals in Northern Ireland.
It has slashed another 2p per litre from Tuesday, making it the cheapest in the province.
It is the second time in 10 days that the chain has cut the cost, taking a litre of unleaded down to 131.7p while diesel drops by another 1p to 137.7p.
The company has taken out full page adverts in national newspapers announcing the price cut.
The ads read: “Low prices on fuel from the UK’s favourite petrol retailer.”
Rivals Tesco said it would drop its prices by “up to 2p a litre” with diesel coming down by 1p.
However, it said it would be cutting prices locally depending on competition, rather than across the board.
Sainsbury’s stopped short of announcing a price drop but said it remained “competitive” on the forecourts.
The RAC welcomed the cuts but called on all petrol retailers to follow suit and pass the fall in wholesale prices to hard-up motorists.
Spokesman Pete Williams said: “Now more than ever, motorists are struggling to make ends meet on a daily basis due to the cost of running a car so every reduction in price at the pump makes a big difference.
“Current analysis of wholesale prices indicates there is still scope for retailers to pass on reductions of at least 5p per litre in petrol and 2p per litre in diesel over the next two weeks.”
Last week the AA called for a 6p a litre drop after wholesale oil prices tumbled by 2.4% to a three month low of under $110 a barrel.
The average price of unleaded is 138.16p a litre while diesel costs 142.71p.
Andy Peake, Asda’s petrol trading director said: “Our national price cap on fuel benefits everyone across the country, meaning that no-one filling up at Asda is forced to pay a premium for their fuel because of where they live.”