Motorists could save as much as £10 to £20 on a typical family-car fill-up by comparing local forecourt prices before filling up, according to Money Saving Expert (MSE), the consumer advice website founded by Martin Lewis. The actual saving depends on local prices, tank size and whether driving further to a cheaper station is worthwhile.
Current average fuel costs
Latest weekly averages based on government figures show unleaded petrol cost 174.1p per litre across the UK on October 26, while diesel averaged 199.2p. At those prices, a 55-litre tank would cost approximately £95.76 for petrol or £109.56 for diesel.
The figures come amid continuing pressure on motorists, with the government's October Budget pointing to the conflict in the Middle East as a factor behind persistently high fuel costs. Chancellor John Healey confirmed that the temporary 5p-per-litre fuel-duty cut would be extended until July 1, 2027, delaying the planned return of the reduction from January.
How to find cheaper forecourts
Although the decision keeps the tax cut in place for longer, it does not mean every filling station will lower its prices. Pump costs are also influenced by wholesale fuel prices, exchange rates, refining and distribution expenses, alongside differences between retailers.
For drivers looking to compare prices, MSE recommends PetrolPrices.com, where users can enter a postcode, town or city and select the type of fuel they need. The service covers more than 8,000 forecourts across the UK and allows motorists to choose how far they are prepared to travel, up to 20 miles.
Real-world price differences
MSE's own example demonstrates how much prices can differ over a relatively short distance. On September 22, unleaded petrol within five miles of a postcode in Gloucester ranged from 161.9p to 195.9p per litre, a gap that would mean £18.70 on a 55-litre tank.
Motorists can also check prices through the PetrolPrices app, making it easier to compare options before leaving home. Checking stations already along a regular route may be a practical way to cut fuel spending without adding unnecessary mileage.
