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Asda and Morrisons have cut the cost of petrol and diesel by two pence per litre - and the RAC are calling on other fuel retailers to follow suit.
Drivers filling up at either of supermarket giant's petrol stations nationwide - including the 17 in Kent - will benefit from the reduction which has made prices the lowest in more than two years.
Asda shoppers will pay no more than 114.7p per litre on unleaded and 116.7p per litre for diesel at the county's stations in Canterbury, Sittingbourne, Rainham, Gravesend, Greenhithe and Erith and Chatham.
The move brings fuel prices down to its lowest level since November 2017, Asda said, the last time fuel prices were cut was in February.
In response to Asda, Morrisons also announced price cuts of 2p a litre on petrol and diesel across all of its forecourts in Kent starting from tomorrow.
The reductions are also expected to be matched by the other big four supermarkets - Sainsbury's and Tesco and the RAC has called on all other fuel retailers "big and small" to follow suit.
The price drop has is because of a fall in the wholesale price of oil, because of a dispute between Saudi Arabia and Russia.
The price cut also comes as the government is said to be considering ending the freeze on fuel duty rates, which has been in place since 2010, with some speculating an announcement could be made when the Budget is revealed tomorrow.
Motorway service stations in Kent were earlier accused of "ripping off" drivers by charging over the odds for fuel.
KentOnline also found the cost of filling can vary by up to 13.2p a litre across the county - enough to save you as much as £9 per tank.