The price of both petrol and diesel at UK filling stations came down by 2p per litre in April, according to the RAC.
However, the motoring organisation said there should have been a steeper reduction in prices, due to oil trading at significantly below $70 for the whole of April.
The average price of a litre of petrol went from 136.1p to 134.1p in April, while the average litre of diesel went from 142.6p to 140.6p.
RAC head of policy Simon Williams said: “On one hand it’s good news prices at the pumps fell for the second straight month, but on the other it’s disappointing that retailers didn’t drop their prices further considering how low oil and wholesale prices continue to be.
“Drivers right across the UK should really be benefitting from petrol being sold at an average of nearer to 130p and 136p for diesel. For now, only those in Northern Ireland are doing so.
“The data shows there’s still scope for prices to be reduced by around 4p a litre, so we call on major retailers to reward their customers with some further significant forecourt cuts soon.
“As the Competition and Markets Authority (CMA) now has new powers to request pricing information from retailers, we’ll be very interested to see whether it believes drivers have been charged fair prices at the pumps this spring.”
