A few pence per litre can look insignificant on a petrol-station sign. Put 50 litres in a family car, however, and choosing the wrong forecourt can add pounds to a single fill-up. For commuters, delivery drivers and anyone covering regular motorway miles, the best fuel price apps can make a meaningful difference to monthly motoring costs.
The right app is not simply the one showing the lowest number. It needs to cover the stations you actually pass, show prices that are recent enough to trust, and make it quick to compare petrol, diesel or premium fuel before you pull in. Here is how the leading options work for UK drivers, and how to use them without wasting time chasing a saving that disappears in extra mileage.
Best fuel price apps for UK motorists
PetrolPrices: best for detailed local comparisons
PetrolPrices is one of the most established choices for checking forecourt prices across the UK. It is particularly useful when you want to search by postcode, compare nearby stations and see how standard unleaded, diesel, premium petrol and premium diesel prices stack up.
Its main strength is focus. This is an app and service built around fuel pricing rather than a navigation tool that happens to display a few stations. If you have several supermarkets, independent forecourts and branded sites within a short drive, that extra detail can help you decide where to fill up.
The trade-off is that no fuel-price service can guarantee every displayed price is current to the minute. Check when the price was last updated, especially during periods when wholesale prices are moving quickly. It is a strong option for planning a regular fill-up near home, work or a usual route.
Waze: best when you are already on the road
Waze suits drivers who need a practical answer while travelling. Search for petrol stations through the app and you can compare prices alongside live traffic conditions, roadworks and route changes. That makes it useful for a long journey, when turning back or taking a large detour would cost more in fuel and time than the saving at the pump.
Prices are often supported by user reports, so coverage and accuracy can vary by area. Busy towns and commuter routes may have more frequent updates than rural locations. Treat Waze as a quick, helpful guide rather than a fixed promise, and always look at the distance to the forecourt as well as the headline price.
Google Maps: best for convenience
Google Maps is likely already on your phone, which makes it an easy starting point. Searching for nearby petrol stations can bring up opening hours, directions, reviews and, in some locations, fuel prices. For a driver who only occasionally compares pump prices, it may be all that is needed.
Its advantage is convenience rather than specialist fuel analysis. It can be especially handy for finding an open station late at night, on a bank holiday or in an unfamiliar area. Before relying on a listed price, look for an update time and compare it with at least one other source if the potential saving is substantial.
Fuelio: best for tracking your own fuel costs
Fuelio is more useful for understanding your vehicle’s fuel spend than hunting down the cheapest station at the last minute. By recording fill-ups, mileage and price per litre, you can monitor real-world mpg, spot rising running costs and estimate what your car, van or motorbike costs to fuel each month.
That is valuable if you are trying to cut overall motoring expenditure. A cheaper pump price is good, but poor tyre pressures, unnecessary weight in the vehicle or short cold journeys can have a bigger impact over time. Fuelio requires a little discipline because you need to enter each fill-up, but the longer-term picture can be worthwhile.
Your usual supermarket or fuel retailer app: best for loyalty offers
Some supermarket and fuel retailers offer apps that show station locations, provide loyalty points or send targeted promotions. If you regularly shop with the same retailer, these benefits can sometimes beat a small price difference elsewhere.
Read the offer carefully. A points promotion is only a saving if you would have bought those groceries or rewards anyway. Also avoid driving across town solely to use a voucher unless the total saving comfortably covers the extra fuel used.
How to compare fuel prices properly
The cheapest price on screen is not always the cheapest fill-up in real life. Start with stations that are on your existing route or within a very short diversion. If one site is 4p per litre cheaper but adds a 10-mile round trip, the extra driving may wipe out the gain, particularly in stop-start traffic.
Next, compare the same grade of fuel. Standard unleaded, E10, premium unleaded and diesel are not interchangeable price points. Most petrol cars made since 2011 are compatible with E10, but older vehicles and certain specialist models may need E5. Check your handbook or manufacturer guidance if you are unsure, rather than choosing a cheaper fuel that is unsuitable for your engine.
Price freshness matters too. An app may show a bargain price from yesterday, while the station has changed its board since then. Where an app displays a time or date, give more weight to recent information. If you are making a special journey to fill up, a quick call to the forecourt can save a frustrating surprise.
A simple routine that saves time and money
The most effective approach is usually to check prices before your normal weekly fill-up, not when the warning light is already on. Choose two or three convenient stations near your home, workplace or regular commute and watch how their prices compare over a few weeks. You will soon see whether the supermarket station is genuinely competitive or merely convenient.
For longer journeys, check prices before joining a motorway. Motorway service stations are useful when you need fuel, food or a break immediately, but their prices can be higher than nearby town or supermarket forecourts. Filling up before departure, or just off the motorway where practical, can reduce the cost of the trip.
Van drivers should be especially careful with this calculation. A larger tank means every penny per litre has a greater effect, but a detour in a loaded van also burns more fuel and takes valuable working time. The best choice may be a slightly higher-priced station directly on route, particularly when a job has a timed arrival.
Fuel apps are useful, but they are not the whole saving
Apps help you make a better decision at the pump, but your driving and vehicle maintenance shape fuel costs every day. Keep tyres inflated to the vehicle manufacturer’s recommended pressures, remove unnecessary roof bars and heavy clutter, and avoid harsh acceleration where road conditions allow. These steps will not turn an inefficient vehicle into an economical one, but they can stop avoidable fuel waste.
It also pays to keep fuel costs in proportion. Saving £2 on a tank is worthwhile, yet not if it causes you to run very low, take risks to reach a station or spend half an hour on a detour. A good fuel-price app supports sensible planning rather than becoming another chore.
Running costs also include insurance, servicing, vehicle tax and repairs. Comparing car, van or motorbike insurance when renewal comes around is another practical place to look for value. UKcompare’s fuel-price map can help you check nearby prices, while a quick insurance comparison can help you see whether a competitive quote is available for your vehicle.
Which fuel price app should you choose?
Choose PetrolPrices if you want a dedicated local price comparison tool. Choose Waze if live navigation is already central to your journeys, and Google Maps if you value simplicity and need to find a nearby open station. Use Fuelio alongside any of them when you want to track consumption and spending over months rather than just today’s pump price.
There is no need to install every app. Pick one that fits the way you drive, check it before a planned fill-up, and compare only stations that make sense for your route. Small, repeatable decisions are usually where the real savings build up – and when you compare before you buy, who compares wins.
