Fuel Fixer data maps the UK’s wrong-fuel problem

Fuel Fixer has published analysis from 57,047 fuel-drain enquiries across 2024 and 2025, offering one of the clearest public snapshots of misfuelling in the UK. The data points to thousands of specialist callouts a year, with diesel vehicles, Friday callouts and quick driver delays all standing out.

Why it matters: - Fuel misfuelling has no central official recording system in the UK, so the new data fills a major information gap. - The findings suggest the scale of the problem is much larger than isolated roadside anecdotes, with specialist providers handling tens of thousands of incidents a year. - The cost of waiting can be steep, with repairs rising from a standard drain to thousands of pounds if pumps or injectors are damaged.

What happened: - Fuel Fixer published findings based on 57,047 fuel-drain enquiries handled across 2024 and 2025. - The East Grinstead, West Sussex-based company described the release as one of the most comprehensive publicly available analyses of wrong-fuel incidents in the UK. - Fuel Fixer has operated since 2009. - The company said it is offering an evidence-based look at a problem that is not officially tracked by government.

The details: - Fuel Fixer said no government body tracks misfuelling incidents. - The commonly cited figure of 150,000 incidents a year comes from a single industry press release issued in 2010, and the methodology was never published. - Fuel Fixer estimates between 80,000 and 130,000 misfuelling incidents annually in the UK, while noting that the figure is only an approximation. - Fuel Fixer reports completing about 17,500 fuel-drain jobs per year. - The AA independently says its technicians fix more than 16,000 wrong-fuel incidents annually. - Together, those two providers account for more than 33,000 specialist callouts a year before other providers, local garages or self-resolved cases are counted. - In Fuel Fixer’s records, 86.7% of cases with a recorded reason involved wrong fuel. - AdBlue contamination accounted for another 9.1% of recorded cases. - Three in four wrong-fuel incidents in the dataset involved diesels. - Petrol put into a diesel vehicle made up 75% to 78% of cases. - Diesel put into a petrol car accounted for 22% to 25% of cases. - Fuel Fixer said that share is higher than the 5% figure often cited in older industry estimates, likely because of its fleet and commercial customer base. - Friday was the busiest day for callouts, running 29% above Sunday, which was the quietest day. - May and August were the peak months, each about 12% above the January baseline. - The Nissan Qashqai led the model rankings with 1,459 cases across the two years. - The VW Golf followed with 1,114 cases, then the Vauxhall Astra with 859 and the Mercedes-Benz A-Class with 744. - Volkswagen was the most represented manufacturer at 12.4% of cases. - Fuel Fixer said those vehicle figures reflect its own customer mix, which includes a significant fleet and hire element, rather than a national ranking. - 68.4% of callers had already moved their vehicle before seeking help. - The median distance driven was 1.5 miles. - 93% had driven 10 miles or fewer. - The median volume of wrong fuel recorded was 20 litres. - More than half of cases involved 20 litres or less. - A standard drain costs £150–£299. - Fuel pump replacement can cost £1,000–£3,000 if the problem is not caught quickly. - Injector and pump repairs can rise to £3,000–£8,000. - The most severe cases can reach £5,000–£15,000 or more. - Fuel Fixer reported a median arrival time of 49.7 minutes in 2025. - Most customers were back on the road within 75 to 90 minutes of calling.

Between the lines: - The data suggests misfuelling is a persistent operational problem, not a rare edge case. - The heavy share of diesel-related incidents points to the higher stakes for modern diesel systems. - The fast turnaround times show why rapid intervention matters financially as well as operationally. - Fuel Fixer’s fleet-heavy customer base means the vehicle model rankings should be read as service data, not a national market study.

What’s next: - Fuel Fixer’s dataset may become a reference point for future industry discussion because official UK statistics do not exist. - The company’s estimates and callout totals are likely to keep shaping debate over the true annual scale of wrong-fuel incidents. - Better recording or wider cross-provider data would be needed to turn estimates into a firmer national picture.

The bottom line: - Fuel Fixer’s numbers put a concrete scale on a problem the UK has largely been estimating in the dark.