UK diesel prices have reached a record high, with average costs edging towards £2 a litre, according to RAC figures. The price now stands between 199.18p and 199.33p per litre, surpassing the previous high of 199.09p recorded in June 2022 following Russia's invasion of Ukraine.
Seven months of disruption
Behind the increase is seven months of disruption to oil production and global supply chains caused by the conflict involving Iran in the Middle East. Since fighting began in late February, diesel has become roughly 59p a litre more expensive – a rise of nearly 40%.
Britain is particularly exposed to these global price shocks as it imports close to 55% of its diesel supply, a vulnerability made worse by recent domestic refinery closures and tight international supplies.
Cost to drivers
These record-breaking prices mean that filling up a standard 55-litre family car now sets drivers back nearly £110 – approximately £31 more than before the conflict began. The highest average diesel price anywhere in the country is currently in the Outer Hebrides, where it has rocketed to 211.9p per litre.
Experts are warning that, since diesel is the backbone of commercial transport, logistics and farming, these unprecedented fuel costs will inevitably be passed on to shoppers through higher prices for everyday goods and a rise in inflation.
Petrol prices also surge
Petrol prices have similarly surged, reaching an average of approximately 174.13p to 174.23p per litre across the UK. This represents a sharp increase of around 41p per litre (roughly 31%) since the Middle East conflict began in late February, driven by the same worldwide spike in crude oil benchmarks such as Brent crude.
However, unlike diesel, Britain's home refineries produce enough petrol to meet domestic demand. This acts as a buffer, shielding petrol prices from the severe international supply shortages and record-breaking highs seen with diesel.
While petrol is at its most expensive point so far in 2026, it remains well below the all-time peak of 191.5p per litre recorded during the summer of 2022.
Brits suggest switch to electric
As news regarding diesel prices surfaced this week, a significant number of Brits proposed the same solution to tackle the costs when discussing the matter on Reddit – switching to electric vehicles.
One person wrote on the platform: "Just a reminder that EV charging is still under 2p per mile and nobody is rationing my electricity."
Meanwhile, another added: "If prices keep going the way they are my next car's going to be electric."
A third chimed in: "My trusty eBike remains unaffected. People will have to use their legs or public transport to get around. How awful!"
Cost of running electric cars
Electric cars cost anywhere between 2p and 22p per mile to run in the UK, depending entirely on where and when you charge them.
Using a dedicated overnight EV tariff combined with a smart home charger brings a full 60kWh charge down to roughly £4.20. This makes daily commuting exceptionally affordable compared with fossil fuels.
However, while overnight home charging proves remarkably cheap, relying solely on public ultra-rapid motorway chargers can make an electric vehicle (EV) just as expensive to run as a traditional petrol or diesel car.
Pay-as-you-go public rapid chargers incur higher VAT (20%) and network surcharges. Depending on motorway ultra-rapid units for 100% of your energy needs can cost over £2,200 annually for 10,000 miles, matching petrol spending.
EVs have significantly fewer moving parts than conventional petrol or diesel cars. Owners can sidestep spending on oil changes, spark plugs, cam belts and exhaust repairs, typically saving anywhere between £100 and £200 a year on upkeep costs.
Fully electric vehicles are subject to the standard £200 annual road tax rate, though they remain exempt from London's ULEZ and the majority of regional Clean Air Zone charges.
