How the New Fuel Finder Scheme Could Save Every Driver Up to £40 a Year at the Pump

Petrol has been above 150p a litre since the latest escalation in the Iran conflict pushed crude oil prices higher in the summer of 2026. With a fuel duty increase arriving in September, prices at the pump are not coming down any time soon. What many drivers do not know is that since February 2026 they have had access to a tool that could help them find the cheapest fuel within their area in real time. The Fuel Finder scheme makes it mandatory for every petrol station in the UK to report its live prices within 30 minutes of any change. Used correctly, it can save a driver up to £40 a year, and when prices are rising as fast as they are now, potentially more.

What the Fuel Finder Scheme Is and How It Works

The Fuel Finder scheme was created following a Competition and Markets Authority investigation that found the UK’s fuel retail market lacked the price transparency needed for drivers to make genuinely informed choices. The CMA found that a lack of easily accessible, real-time price data allowed price disparities between nearby stations to persist longer than they should in a competitive market.

From 2 February 2026, every fuel retailer in the United Kingdom became legally required to submit its current unleaded petrol, diesel, and where applicable premium fuel prices to a central data system, and to update that data within 30 minutes of any price change. The obligation applies to supermarket forecourts, branded fuel stations, independent forecourts, and motorway service stations alike. There are no exemptions for size or ownership type.

The government does not run a consumer-facing website or app directly. Instead, the price data is made available via a publicly accessible API and CSV download, which third-party developers can use to build comparison tools. The CMA set a three-month grace period before enforcement began; from 1 May 2026, fuel retailers that fail to report prices or that submit inaccurate data face enforcement action from the CMA.

The idea was modelled in part on similar schemes that have operated successfully in Australia, where mandatory real-time fuel price reporting in Western Australia and New South Wales has been shown to reduce average retail margins and deliver measurable savings to consumers.

How Much Can Drivers Actually Save?

The government’s headline claim is that the average household could save up to £40 per year by using Fuel Finder tools to choose cheaper nearby stations. Industry estimates suggest drivers could save between 1p and 6p per litre by consistently choosing the cheapest option in their area rather than the most convenient.

On a 55-litre tank, a 6p saving per litre amounts to £3.30 per fill. If you fill up once a week, that is over £170 a year. The government’s £40 figure assumes a more modest saving rate and accounts for the fact that not every journey involves a price-comparison decision. In practice, the saving depends heavily on how much price variation exists in your local market and how far you are willing to deviate from your usual forecourt to find a cheaper price.

In areas where supermarket forecourts compete with branded stations, price gaps of 6p or more per litre are common and often persistent. Supermarket unleaded at major chains including Tesco, Asda, Sainsbury’s, and Morrisons has consistently run below the UK average retail price for unleaded, sometimes by 4p to 8p per litre. Motorway service station fuel has remained the most expensive retail category: RAC Fuel Watch data has shown motorway services charging up to 17p more per litre than local roads for the same fuel type. Fuel Finder makes these disparities immediately visible.

Where to Find Fuel Finder Data

Because the government did not build a consumer app, drivers need to use third-party tools to access the data. Several well-established price comparison websites and apps now pull directly from the Fuel Finder API. PetrolPrices.com was an early integrator and displays live prices by postcode across thousands of stations nationwide. Waze has added live fuel prices to its navigation app in areas where the data is available. Google Maps has incorporated fuel price data into petrol station listings in the UK.

The most straightforward approach for most drivers is to download PetrolPrices.com’s mobile app or use it via a browser. Search your postcode, filter by fuel type, and the app shows a ranked list of nearby stations by current price, updated in real time as forecourts submit their data. The RAC’s own Fuel Watch tool also uses the Fuel Finder data and provides regional and national averages, useful for planning longer journeys where you can choose between service stations on a route.

For lorry drivers and high-mileage van drivers, fleet-focused tools from companies including Radius Pay and Fuel Card Services have integrated Fuel Finder data into their route planning software, allowing fleet managers to pre-select cheaper refuelling points on a driver’s planned route. Given that a heavy goods vehicle can consume 250 to 350 litres of diesel per week, the savings from consistent price optimisation at that scale are substantially larger than for the average car driver.

The September Fuel Duty Rise and Why It Matters Now

The Fuel Finder scheme is arriving at a particularly useful moment. The 5p per litre fuel duty cut that has been in place since March 2022 ends on 31 August 2026. From September 2026, the government is reversing the cut in stages: 1p added in September, 2p more in December, and a further 2p increase in March 2027. The full reversal adds 5p per litre to both petrol and diesel over roughly 12 months.

On a 55-litre tank, the full 5p restoration adds £2.75 per fill. Filled once a week, that is an additional £143 a year in fuel duty alone on top of the retail price. Combined with the elevated pump prices resulting from the Iran conflict pushing crude oil above $105 a barrel, the total fuel cost increase for the average UK driver in the second half of 2026 is substantial.

In that context, a 6p saving per litre from using Fuel Finder apps effectively offsets more than the entire September fuel duty increase on a per-litre basis. Drivers who actively use the scheme during this period of elevated prices stand to recover a meaningful portion of the higher costs imposed by both the duty increase and the underlying oil price movements.

Is the Scheme Working?

The scheme has been operating for six months as of August 2026, giving enough time for an initial assessment of its effectiveness. The CMA began enforcement in May 2026 and has since contacted a number of retailers about delayed or inaccurate price reporting. The most common compliance failure has been updating prices within the 30-minute window — some smaller independent forecourts were slow to integrate their point-of-sale systems with the reporting requirement and submitted updates hours after prices changed at the pump.

Consumer groups including Which? and the RAC have broadly welcomed the scheme but noted that its effectiveness depends on widespread public awareness and adoption. Research published in Australia following similar schemes found that consumer uptake of price comparison tools needed to reach a critical mass before the competitive pressure on retailers was sufficient to narrow price gaps. Forecourts that knew most of their customers were not using comparison apps had less incentive to price aggressively.

In the UK, awareness of the Fuel Finder scheme remains relatively low. A survey conducted by PetrolPrices.com in June 2026 found that fewer than a third of UK drivers were aware that real-time price data was now publicly available, and only around 15 per cent had actively used a comparison tool in the previous month. If those figures improve — particularly as fuel prices remain elevated and the duty increase bites from September — the competitive pressure on higher-priced forecourts will grow.

What to Do

Download a Fuel Finder app before your next fill. PetrolPrices.com is the most comprehensive for UK drivers; the Waze navigation app also shows live prices at petrol stations on your route if you enable the fuel prices layer in settings. Before a longer journey, use RAC Fuel Watch (rac.co.uk/drive/advice/fuel/fuel-watch/) to check regional average prices and identify whether the route you are taking passes through areas with lower retail prices.

With the September fuel duty rise confirmed and pump prices already elevated, the gap between the cheapest and most expensive forecourt in most areas is likely to widen rather than narrow over the coming months. Using the Fuel Finder data to find the cheaper options consistently is one of the few practical ways drivers can offset rising fuel costs without changing how much they drive.

Sources:

• Cinch: Fuel Finder Scheme Guide
• Confused.com: Fuel Finder Scheme
• Stoneacre: Fuel Finder Scheme Launch