Fuel prices · 22 August 2026
Your "Cheap" Petrol Station Isn't Always the Cheap One
You know the station. The one you default to because it's usually the best price nearby. Most days, that instinct is right. But we checked whether it's always right — and it isn't, often enough to matter.
Data: FuelScope analysis of ~7,800 UK stations, trailing 90 days to 22 August 2026.
The number
We tracked over 2,000 stations that are normally among the cheapest third of their local competitors (within roughly 5 miles — the same radius FuelScope itself searches). On about 1 in 25 days, that "usually cheap" station wasn't just off its normal spot — it was the single most expensive station in its own neighbourhood.
Run it the other way and the effect is if anything a bit stronger: stations that are normally among the priciest locally turn out to be the cheapest nearby on roughly 1 in 16 days.
This isn't a one-fuel fluke — we checked both diesel and petrol, and cross-checked the result two different ways (a coordinate-grid approximation and a true radius search matching the app's own 5-mile logic). Both fuels, both methods, land in the same 3.6–6.3% range.
1 in 25
days a 'usually cheap' station becomes the priciest nearby
1 in 16
days a 'usually priciest' station becomes the cheapest nearby
Diesel & petrol, ~5-mile local comparison, cross-checked two ways · 90 days to 22 Aug 2026 · FuelScope data.
A typical day
A flip day
Bar height = price that day (taller = pricier). The ★ station is usually the cheapest of the four (left) — but on a flip day, it's priced above all three others (right), even though its own price barely moved. The other stations simply moved past it.
Illustrative diagram, not real station data — see the article text for the actual measured rates.
It's not just the extreme case, either
Full flip-to-the-opposite-extreme is the headline number, but it's the tip of something bigger: "usually cheap" stations are outside their normal third of the local market on almost 1 day in 4. "Usually priciest" stations drift off their spot even more — more than 1 day in 4.
Local price rankings, in other words, are not settled. They're closer to a loose tendency than a fixed order.
Why this happens
The likely mechanism is the same one behind Northern Ireland's bigger, less frequent price jumps: stations don't all reprice on the same schedule. Independents, supermarkets, and different regional operators shift prices at different times and by different amounts. A station that's usually near the bottom of its local range can end up above a neighbour simply because the neighbour moved first — or moved by more — not because anything fundamental about either station changed.
What this means at the pump
"I always fill up here because it's cheap" is a habit built on a pattern that holds most of the time — not a guarantee. On the days it doesn't hold, the gap isn't trivial: it's the difference between the cheapest and priciest station in the same few square miles, on the same day.
That's a small check with a real payoff: comparing live prices before you commit takes seconds, and on roughly 1 day in 25 it changes which station is actually the right call.
FuelScope
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