Practical ways to save money on fuel

Fuel is one of the largest costs you can actually control. A handful of habits (how you buy, how you drive, and how you look after the car) add up to real money over a year. Here are the tactics that genuinely move the needle, minus the myths and gadgets.

By the Refuelia Editorial Team · Reviewed 10 July 2026

Buy where it's cheaper: this is the big one

The single largest and easiest saving is simply filling up at cheaper stations. Prices for the same litre of fuel vary a surprising amount over quite short distances: supermarket forecourts and edge-of-town sites usually undercut motorway services, airport stations and isolated rural pumps by a noticeable margin. None of your driving technique matters as much as paying a lower price per litre in the first place.

The trick is to make the cheaper station your default rather than a lucky accident. Use the map to compare recent prices near you and along your regular routes, note which one or two stations are reliably cheap, and build your fill-ups around them. Because pump prices tend to drift up and down together in a local area, checking before you commit is worth the thirty seconds it takes.

Don't run the tank to empty

Running low on fuel quietly costs you money. An empty tank forces you to buy wherever you happen to be, often the most expensive option on your route, because you no longer have the luxury of waiting. Keeping a comfortable buffer, say a quarter of a tank, means you always retain the choice to drive past an overpriced forecourt and fill up somewhere sensible. Planning beats desperation every time, and it removes the stress of the low-fuel warning light as a bonus.

Drive a little more smoothly

How you drive changes how much fuel the engine burns, and the biggest wins come from calm, anticipatory driving rather than dramatic changes. The goal is to keep the car moving steadily and avoid turning fuel into heat at the brakes.

• Ease off the accelerator and brake. Look well ahead, anticipate what traffic will do, and coast up to junctions and red lights instead of racing to them. Every hard acceleration you avoid is fuel you keep.
• Slow down on the motorway. Aerodynamic drag rises steeply as speed increases, so a car cruising at a high speed works much harder than the same car a little slower. Easing off the top of your motorway speed is one of the most effective changes you can make on a long trip.
• Use higher gears and steady revs. Change up earlier and let the engine turn over gently rather than labouring at high revs. In modern cars, taking your foot fully off the accelerator while still in gear on a downhill or approach uses very little fuel.
• Turn the engine off when parked. Idling for more than a minute or two (waiting at a level crossing, outside a school) burns fuel to move nowhere.

Look after the tyres and cut the drag

A well-maintained car is a more efficient car, and tyres are the place most drivers lose money without realising it. Under-inflated tyres increase rolling resistance, so the engine has to work harder to keep you moving, and they wear out faster too. Check your pressures roughly once a month and before long trips, and set them to the figures in your handbook or the sticker inside the driver's door, adjusting upward for a heavy load if the chart says so.

Weight and shape matter too. Clear the boot of anything you are carrying for no reason, and take off roof racks, boxes and bike carriers when unused, because they create drag that costs fuel at every speed. Beyond that, keep up with servicing: fresh oil and a clean air filter help the car run as designed.

Use loyalty schemes and apps sensibly

Fuel loyalty schemes, supermarket points and station apps can turn an already competitive price into a slightly better one, and occasionally beat a lower shelf price elsewhere. It is worth signing up for the one or two that match your usual routes and letting the discount accumulate quietly in the background. The important caveat: never drive out of your way to use them. A detour to reach a "cheaper" branded station can easily burn more fuel than the loyalty discount saves, and you end up worse off for the effort.

Plan your trips and your fill-ups

A cold engine uses noticeably more fuel until it warms up, which is why several short journeys from cold are less efficient than one longer trip that covers the same errands. Combining the school run, the shop and the post office into a single loop means the engine spends more of its time warm and working efficiently. Fold the fuel stop into that plan too, so you refuel at a station you have already chosen for its price rather than the nearest pump when the warning light appears.

As a concrete example, imagine two drivers with identical cars and the same weekly mileage. One fills up reactively at whatever motorway or convenience station is nearest when the gauge drops, accelerates hard, drives at the top of the speed limit and never checks the tyres. The other keeps a buffer in the tank, fills up at a consistently cheaper supermarket on a route they already drive, eases off on the motorway and keeps the tyres inflated. Over a year, the second driver spends less on fuel for exactly the same journeys, not through any single dramatic saving, but from a stack of small ones repeated every week.

Report prices to help the next driver

The cheaper-station strategy only works if the price data everyone relies on stays fresh. When you report what you actually paid at the pump, you keep the map accurate for the next person, and you keep it accurate for yourself the next time you plan a fill-up. It takes seconds, costs nothing, and makes the whole community's comparisons more honest.