Guide · Buying fuel for less
How to Find the Cheapest Gas
Most of what circulates about cheap fuel — magic days of the week, a brand that is always cheapest, a card that pays for itself — is worth far less than one habit: knowing the price before you pick the station. Here are the eight steps that survive contact with the numbers.
Quick answer
To find the cheapest gas, compare live station prices for your exact fuel type before you leave, then check that the saving is larger than the fuel you burn getting there. In practice: a price map, a filter for your grade, and one piece of arithmetic — a 6 cent per litre saving on a 45 litre fill is worth about 11 km of detour, and nothing beyond that.
The eight steps, in order of how much they save
Ordered deliberately: the first two are worth more than the last four combined, and steps five and eight are the only ones where a long drive is ever justified.
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Check the price before you drive, not at the pump
By the time you are on the forecourt the decision is already made. Every market with an official price feed publishes station-level prices, and looking them up takes less time than queuing. This one habit produces most of the saving.
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Filter for the fuel you actually use
A station that is cheapest on Euro 95 is not automatically cheapest on diesel, E10 or LPG: the ranking can invert between two grades on the same forecourt. Set the filter first.
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Compare against the average, not against your usual station
Knowing a station is 4 cents cheaper than the one you always use says nothing about whether it is cheap. The national or regional average is what separates a bargain from a slightly less expensive habit.
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Do the detour arithmetic
Saving equals litres in the tank times the price gap; cost equals twice the distance, times your consumption per 100 km, times the price you pay. If the second is bigger, the cheap station is not cheap.
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Never fill up on the motorway if you can avoid it
Motorway service stations are the most expensive fuel in every European market, by a margin that dwarfs any brand or day-of-week effect. A station off the junction is almost always cheaper.
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Start with supermarket and unbranded forecourts, then verify
Supermarkets and independents are the place to start, because fuel brings people through the door rather than being the margin. Verify the number rather than trusting the logo.
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Stack a loyalty or fuel card on a station that is already cheap
Discount schemes are worth a few cents per litre: real money over a year, but smaller than the gap between a good station and a bad one. A card that ties you to an expensive network costs more than it returns.
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If you live near a border, cross it deliberately
Fuel duty is national, so gaps across a land border are structural rather than temporary and can exceed 20 cents a litre. That is the one case where a long detour pays, and step 4 still applies.
The detour trap, with the arithmetic
The step people skip, and the one that turns price shopping from a hobby into a saving. A cheaper price is only cheaper after you subtract the fuel spent reaching it.
litres in the tank × price gap per litreYou spend:
2 × detour km × (litres per 100 km / 100) × price per litreWorth it only when the first line is bigger than the second.
The trip fuel cost calculator does the same sum for a whole journey, and the live station pages rank nearby stations by price so the gap is visible before you commit.
What holds up, and what does not
Fuel advice travels well and ages badly. The short version for the claims that come up most often in Europe.
No Europe-wide pattern survives checking. The exception is Austria, where a station may legally raise its price only once a day, at midday.
Consistently, in every market, by more than any other effect on this page.
True as a tendency, not a rule. Two supermarket forecourts in one town can differ more than two rival brands.
Only if the engine specifies a higher minimum octane. Otherwise it costs more per litre and returns little. See the fuel grades guide.
Duty is national, so the gap is structural and can exceed 20 cents a litre.
Worth a few cents a litre: real, but smaller than the station-to-station gap. Use it on top of a cheap station, not as a reason to visit an expensive one.
Where to look up the price
Several European countries oblige stations to publish their prices to an official feed, which is why station-level comparison is possible at all. This site aggregates those feeds into live station prices for 28 markets, alongside the weekly country averages the European Commission publishes for the EU.
Start with the country you are in, then narrow to your town or your position. If you are comparing countries rather than stations, the weekly ranking is the faster tool.
Frequently asked questions
How do I find the cheapest gas near me?
Look up live station prices for your area before you set off, filter for the exact fuel your car takes, and compare the best nearby price against the national average rather than against your usual station. Then check that the saving beats the fuel burned getting there.
Is there a cheapest day of the week to buy fuel?
For most of Europe, no: day-of-the-week advice rarely survives a border. The one hard rule is Austrian, where a station may legally raise its price only once a day, at midday, and may cut it at any time. Everywhere else the station you pick matters far more than the day.
Are supermarket and unbranded stations really cheaper?
Usually, and often by a wide margin, because fuel brings footfall rather than being the main business. Treat it as a tendency and not a guarantee: two supermarket forecourts in one town can differ more than two rival brands.
Is it worth driving further to reach a cheaper station?
Rarely as far as people think. A 6 cent per litre saving on a 45 litre fill is 2.70 euro; a car using 7 litres per 100 km at 1.70 per litre spends about 24 cents per kilometre of round trip, so break-even is roughly 11 kilometres.
Is diesel cheaper in France or the UK?
It moves, which is why the question keeps being asked. Both countries have live station prices here, so it is a comparison you can run today rather than a number worth memorising. The gap is driven by duty and VAT, so it shifts with tax decisions.
Where is fuel cheapest in Europe right now?
The ranking changes every week with the European Commission Oil Bulletin, and the cheapest country is usually one where duty is low. The current ranking for both grades is kept up to date here, alongside live station prices in 28 markets.