Asda signals supermarket price war as it cuts petrol price by 2p a litre Hard-pressed motorists were given some relief today when supermarket fuel price cuts were announced. Asda said it would be reducing petrol and diesel prices by 2p a litre from tomorrow while Sainsbury's said its cut would see its fuel going down "by up to 2p a litre" also from tomorrow. Asda said its reductions would mean motorists paying no more than 131.7p a litre for petrol and 137.7p a litre for diesel. Asda petrol trading director Andy Peake said: "Today's move shows that we are once again leading the way in reducing the price at the pump. Unlike other retailers, our price cuts benefit everyone across the country, meaning that no one filling up at Asda will be forced to play a postcode lottery. Sainsbury's head of fuel, Richard Crampton, said: "With Christmas on the horizon we know that this can be an expensive time of year so we're delighted to announce that from tomorrow we will be lowering our petrol and diesel prices by up to 2p per litre."