The Government's Fuel Finder was introduced with a simple promise: give motorists access to accurate fuel prices so they can shop around and save money at the pumps.
But less than a year after its launch, the £2 million scheme is facing serious questions over whether it can be trusted at all.
New research by What Car?, using analysis from PetrolPrices.com, suggests the database contains widespread errors ranging from incorrectly located filling stations to inaccurate classifications of supermarkets and motorway services. More concerning still, motorists are often unable to tell whether the prices they are seeing are current.
For a scheme designed to improve transparency and reduce fuel bills, those shortcomings strike at the heart of its purpose.
A good idea undermined by poor execution
The Competition and Markets Authority (CMA) called for a national fuel price transparency scheme after finding competition in the UK's fuel retail market had weakened following the pandemic.
If drivers can easily compare fuel prices, retailers should be forced to compete more aggressively, helping to keep prices down across the market. The Government estimated the scheme could save motorists around £40 a year.
However, transparency only delivers results when the information is accurate. If drivers cannot rely on the data, the entire system begins to lose credibility.
Errors that could cost motorists money
According to data analysed by PetrolPrices.com, the Government's fuel price database contains a surprising number of inaccuracies.
Among the issues identified were:
- Nine filling stations appearing in the Indian Ocean because of incorrect map coordinates.
- More than 150 sites shown at least 500 metres from their true location.
- Hundreds of petrol stations wrongly identified as supermarkets.
- More than 80 supermarkets not recognised as supermarket forecourts.
- Standard filling stations incorrectly listed as motorway service areas, while some motorway sites were not identified as such.
These are more than technical errors.
Supermarket forecourts generally offer some of the lowest fuel prices in the UK, while motorway services are typically among the most expensive. Incorrect classifications make it harder for motorists to make informed decisions about where to fill up.
Previous research by What Car? estimated that these inaccuracies could leave drivers paying around 8p per litre more than expected, adding as much as £260 a year to annual fuel costs for regular motorists.
Can motorists trust the prices they see?
Perhaps the biggest weakness is not where petrol stations appear on a map, but whether the published prices are still valid.
Earlier this year, VE3 Global, the company responsible for delivering the scheme, changed the way retailers update fuel prices. Rather than allowing retailers to reconfirm prices every day, they are now only expected to submit updates when prices change.
A price that appears online may have remained unchanged for days or even weeks. Motorists have no obvious way of knowing whether the information is genuinely current or simply hasn't been updated.
That uncertainty undermines confidence in the service.
Clare Lafferty, of PetrolPrices.com, described the implementation as "a disaster", arguing that both the Department for Energy Security and Net Zero (DESNZ) and VE3 Global had failed to work effectively with the fuel retail industry to ensure the system operates as intended.
Motorists deserve better than unreliable data
Fuel remains one of the biggest day-to-day motoring expenses for millions of households. At a time when drivers are already facing higher insurance premiums, increasing repair bills and rising vehicle taxes, every opportunity to reduce running costs matters.
The Government has repeatedly promoted the scheme as a tool that will help drivers save money. Yet if the information cannot be trusted, motorists may end up making longer journeys to filling stations that are no cheaper than their local alternative.
Public confidence is difficult to build and easy to lose. When taxpayers have funded a national comparison service, motorists are entitled to expect reliable information, accurate locations and up-to-date pricing.
The concept behind Fuel Finder remains sound. Greater transparency has the potential to improve competition and put downward pressure on fuel prices across the UK.
However, the latest findings suggest the project still falls well short of that ambition.
The bottom line
Fuel Finder was introduced to give motorists more control over what they pay at the pumps. Instead, questions over data quality are threatening to undermine confidence in the service before it has had the chance to prove its worth.
The Government now faces an important challenge. It must not only fix the technical shortcomings identified by independent researchers but also demonstrate that motorists can rely on the information being published.
Until then, drivers should think twice before relying on a single source when comparing fuel prices. Cross-checking prices using established comparison services remains the safest way to ensure a cheaper fill-up really is a cheaper fill-up.