Morrisons has announced that its customers will be offered 6p off every litre of petrol or diesel from April 18, becoming the latest supermarket to join the fuel price war.
The supermarket's Fuel Britannia offer will be available to shoppers who spend over £40 in stores.
The latest move follows fuel price cuts offered by Sainsbury's and the Co-op.
Sainsbury's customers who spend over £50 are offered 5p off a litre, while the Co-op offers a discount of 5p to those spending £30 in its shops.
Morrisons said it is making the offer to help motorists hit by soaring fuel costs.
The average cost of fuel rose 15.9% in the year to the end of March, figures show.
Richard Lancaster, marketing director of Morrisons, said: "We know that over the Easter holidays and the Royal Wedding, motorists will want to travel further to visit friends and relatives, but will be put off by the cost of petrol. Our offer ensures that our customers can enjoy this time and worry less about the cost."
The offer runs until May 8. The group, which is the UK's fourth largest supermarket chain, has 296 petrol stations.
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