Petrol prices fall to near four-year low

4th June 2025

Petrol prices dropped by a further 2p in May, making for three consecutive months of falling prices and the lowest average pump price in almost four years.

Prices for unleaded are now at their lowest since early July 2021 while diesel – which also came down by 2p – has dipped below 139p for the first time since 28 September 2021.

The cost of a litre of petrol reduced from 134p at the start of May to 132.3p by the close, while diesel dropped from 140.5p to 138.4p.

The 2p-a-litre drop in both fuels shaved another £1 off the cost of filling a 55-litre family car last month. A full petrol fill-up is now £72.74 while diesel is £76.13.

Unleaded has now come down by more than 7p since the end of February (139.65p) and diesel by 8p (146.5p), saving drivers around £4 a tank.

RAC head of policy Simon Williams said: “While this takes us back to prices last seen almost four years ago, it’s worth remembering that prices are lower today because the 5p duty cut, first introduced in March 2022, is still being applied. If it wasn’t for the fuel duty freeze, prices could well be much higher.”

And RAC analysis also shows there’s still plenty of room for retailers to cut prices more.

With oil averaging $64 a barrel throughout May, the motoring specialist says the average price of petrol ought to be under 130p and diesel under 134p.

Supermarkets are 3p lower than the UK averages, with a litre of unleaded now down to 129p and diesel to 135p.

Northern Ireland remains cheaper still; unleaded averages 126.5p – nearly 6p lower than the UK average. Diesel is 130.8p – almost 8p down on the average UK price.

Williams went on: “For those prepared to shop around or use apps such as MyRAC, there are some excellent bargains to be had which can save several vital pounds on a full tank.”

Sainsbury’s Shorehead store at Southgate in Huddersfield currently has some of the lowest pump prices, with a litre of petrol just 121.9p. Asda’s forecourt on Western Road in Park Royal, London, is not far off at 122.7p, while Tesco is pricing at 123.9p less than three miles away at Western Avenue in Greenford.

The cheapest supermarket diesel on sale is at Sainsbury’s in Falls Road, Belfast, at 126.9p. Asda is close behind, offering diesel at 127.7p at two Northern Ireland locations – Coleraine and Cookstown, and at Breck Road in Liverpool. Sainsbury’s Southgate in Huddersfield is 129.9p.