Petrol prices crept up again in September, while diesel has risen to its highest point since August 2015, according to the latest data from RAC Fuel Watch.
The average cost of a litre of petrol rose by 0.48p over the month to 112.07p, while diesel averaged 113.34p per litre at the end of September - up 0.42p over the month.
To fill up an average-sized 55-litre petrol family hatchback it now costs £61.63 on average, just over £5 more than at the start of the year. To fill an equivalent diesel vehicle costs £62.34, about £4 more than it did in January.
The RAC says rising oil prices have fueled the increase in petrol prices. It adds that in September the price of a barrel of oil went up by 8%, or $3.45, finishing the month at $48.35 a barrel.
RAC fuel spokesman Simon Williams says: “A higher oil price, combined with a weakening pound, is forcing up wholesale fuel prices: the wholesale price of diesel is now nearly 9p higher than it was at the start of August, and petrol 7.4p higher. The effect of this to date has been gradually rising pump prices.”
He adds: “The new chancellor’s first Autumn Statement also looms next month, and the RAC hopes that he sees sense in committing to not increase fuel duty for the remainder of the Parliament.”
Regional prices vary
The South East of England is the most expensive place to buy petrol in the UK, with average prices at 112.62p per litre in September. East Anglia is priciest for diesel, at an average of 113.96p per litre. This region also recorded the biggest price rises through September, with petrol up 0.84p per litre and diesel up 0.61p per litre.
Northern Ireland is the cheapest region for both fuels. It saw the smallest increase in diesel prices, up 0.12p to 112.03p per litre, and was the only part of the UK to see average petrol prices fall – by 0.02p to 110.76p per litre.