Saving money on petrol and diesel is straightforward, but requires a little effort. While driving around comparing prices is inefficient, modern tools make finding the lowest local costs easy.
How to Locate Low-Cost Fuel
Fuel prices change daily and vary significantly between stations. Regularly checking prices at stations you pass can reveal savings. Motorway service stations are almost always the most expensive ; avoid them unless necessary. Supermarkets often initiate price wars and remain competitive.
Regional differences also matter: Scotland and Northern Ireland generally have cheaper fuel than London and the South East, though not enough to justify a dedicated trip. Rural or suburban stations may be cheaper than those in busy areas, but real-time price comparison services are the most effective solution.
Since 2026, UK law mandates that all fuel stations report pricing data to the Government’s Fuel Finder service. Apps like fuelGenie and PetrolPrices provide instant access to this information. Navigation apps like Waze also integrate this data, though a dedicated Government app doesn’t exist.
Why Motorway Fuel is Expensive
Motorway stations justify higher prices by offering 24/7 access and additional services, but this remains a contested argument. These stations have a captive audience, allowing them to inflate prices. For long journeys, fill up beforehand and drive efficiently to maximize fuel range.
Why Supermarket Fuel is Cheaper
Supermarkets use lower fuel prices as a loss leader, attracting customers who then spend money on other products. The fuel itself meets the same UK standards, with differences primarily in additive blends. While premium brands emphasize their additive packages, supermarket fuel still contains detergents and lubricants.
Maximizing Savings with Loyalty Programs and Fuel Cards
Use loyalty cards (e.g., Nectar at Sainsbury’s/Esso) to accumulate points on every fill-up. Businesses can leverage fuel cards (e.g., Allstar) for fleet-wide savings and tracking. Individuals are limited to advertised prices.
Should You Change Fuel or Car?
Switching to lower-grade fuel in a performance car is not recommended, as it may cause long-term engine problems. Electric vehicles (EVs) can be cheaper to run, but public charging costs are rising. Hybrids and plug-in hybrids offer a middle ground, though PHEVs can become inefficient when batteries deplete.
Global Fuel Price Comparison
Fuel prices vary drastically worldwide, influenced by oil production and geopolitical factors. As of February 2026, Libya had the cheapest fuel at £0.99 per tank, while Hong Kong had the most expensive at £154. The UK falls in the middle, with a 55-liter tank costing around £72.
Bottom line: Finding the cheapest fuel requires effort, but tools and informed choices can save significant money. Prioritize supermarket fuel, leverage loyalty programs, and consider long-term vehicle options to optimize running costs.
