Cheapest supermarket petrol price - check your postcode now with new interactive map Motorists travelling to visit loved ones this Christmas face a postcode lottery at supermarket petrol pumps with the cost of filling up a family car varying by up to £8 across the country.
In contrast, a motorist who fills up at another Sainsbury’s fuel station 170 miles away in Braintree, Essex, is only being charged 126.9p per litre, according to the latest data released by the retailers - which is more than 14p per litre cheaper.
A Sainsbury’s garage in Frome, Somerset, has been identified as the most expensive supermarket fuel outlet in the country - charging 141.2p per litre of standard petrol.
And Tesco customers at two garages in Northern Ireland will pay nearly 12p per litre less than their counterparts in eleven other supermarket petrol stations around Scotland and England.
Morrisons is charging customers in Hartlepool nearly 9p per litre less than drivers who fill up at Morrisons garages in Denbigh and Rhyl, north Wales.
