If you’ve always thought supermarket petrol was the cheapest option, you’re not alone—but that idea’s starting to look outdated. A wave of new data shows that traditional petrol stations like Esso and Shell are sometimes beating supermarkets like Asda and Sainsbury’s on price.
Supermarkets built a reputation for offering cheap fuel—but recently, that’s changed. Prices at Sainsbury’s, Morrisons, and Asda have crept up, and in some cases, they’re now higher than traditional forecourts. That means your usual "fill-up while you shop" routine might be costing you more than you think.
Petrol and diesel prices in the UK are fluctuating more than ever. Where you fill up can make a real difference. And unlike a few years ago, supermarkets aren’t always the safe bet. For example, some Shell and Esso stations have been undercutting supermarkets by a few pence per litre—enough to add up over time, especially if you drive often.
Should You Be Comparing Fuel Prices?
Absolutely. With the cost of living still high, checking fuel prices before filling up is a simple way to save money. There are loads of free apps and websites that show you where to find the cheapest petrol near you—so why not use them?
Debunking the Supermarket Fuel Myths
There are two big myths that need busting:
- Supermarket fuel is always cheaper – Not anymore. Prices now vary wildly, even within the same area.
- Supermarket fuel is lower quality – Also false. Supermarket fuel meets the same UK standards as major brands, so you’re not putting your car at risk.
Diesel Drivers, Take Note
If you drive a diesel car, it’s especially important to stay updated on prices. Diesel often costs more than petrol and the gap between supermarket and traditional forecourt pricing can be even bigger. Keeping an eye on local prices can save you serious cash over the year.
Want to Save Money on Fuel? Here’s How:
- Use fuel price comparison apps – Like PetrolPrices or Google Maps.
- Check local independents – Smaller garages sometimes undercut the big names.
- Avoid motorway services – They’re almost always more expensive.
- Fill up mid-week – Prices can spike before the weekend.
A Quick Look at Current Prices (as of now):
| Fuel Station | Unleaded (per litre) | Unleaded (per gallon) |
|---|---|---|
| Esso | 131p | £5.95 |
| Shell | 132p | £6.00 |
| Sainsbury’s | 135p | £6.14 |
| Morrisons | 134p | £6.08 |
| Asda | 134p | £6.08 |
Don’t assume supermarket fuel is cheapest—it often isn’t. You could be overpaying by sticking to old habits. With prices changing so frequently, it pays to be flexible. Spending just a few seconds checking an app before you fill up could save you up to £250 a year.
