Morrisons has sparked a petrol war by cutting its prices by 15p a litre for anyone spending at least £60 in the supermarket store.
It's the biggest discount on petrol ever to be offered in the UK by a supermarket and follows on from Tesco cutting its prices by 10p a litre last month for customers spending at least £60.
The supermarket estimates that if a customer fills up their tank with £50 of petrol they will save an average of £5.
Rivals Sainsbury's, Tesco and Asda would not tell us if they had similar plans but Nick Agarwal, spokesperson for Asda, says: "Discounted petrol that's dependent on buying overpriced groceries, is a fuel's paradise."
Paul Watters, spokesperson for the AA, says this is a 'dramatic' offer and has to be good news for consumers. However, he points out that this is not an overall reduction in prices but simply a short-term offer.
"These kind of deals help keep petrol retailers on their toes but we would prefer to see lower petrol prices for everyone," he adds.
The deal will last from 23 February to 4 March. Customers who receive a discount voucher will then have until 11 March to redeem this.
Richard Lancaster, Morrisons marketing director, says: "We know how tough it is for our customers. This deal will help them in these tough economic times. Nobody has ever knocked this much off a litre of fuel before. This will make a real difference for our customers."