Drivers could save up to 20p per litre by avoiding motorways
Car changing is a big deal
With fuel prices under pressure due to tensions in the Middle East, a new analysis shows that you could save significantly at the pump by swapping motorways for A-roads.
With millions of drivers gearing up for early May bank holiday getaways, the question is where to save on fuel. New AA analysis suggests A-roads could offer significant savings.
The findings come as global fuel costs are under mounting pressure due to the ongoing Iran war, which has unsettled oil markets and raised concerns about supply disruptions through key shipping routes. This has driven up prices at the pump – particularly in the most expensive places to fill up.
Motorway prices remain stubbornly high
Despite average petrol prices falling to around 157.7p per litre, motorway service stations continue to charge a steep premium. The “going rate” on motorways is around 184.9p per litre for petrol and 205.9p for diesel.
Across major routes, prices have barely shifted in recent weeks – even as wholesale fuel costs have dipped – leaving many drivers paying well above the national average.
A-roads offer noticeably cheaper fuel
By contrast, the AA analysis found that major A-roads are consistently cheaper. It found petrol averages around 163.4p per litre on A-roads, compared with more than 180p per litre on motorways, with diesel showing a similar gap of 194.4p per litre on A-roads.
On some of the busiest holiday routes, the savings can be even greater than average. These differences vary by region – for example:
- South West (M4/M5 vs A303/A30): up to 20p per litre cheaper on A-roads
- Routes into Wales: fuel prices can vary by around 10p per litre depending on route and region
- North-South journeys (A1/A1(M) vs M1/M6): about 15p per litre cheaper on the A1 corridor
For drivers heading to the West Country, the difference is particularly stark. While motorway fuel averages around 180.9p per litre, prices along the A303 running through Hampshire, Wiltshire and Devon drop to about 160.8p. The analysis suggests you’ll even find 160.1p per litre as you make your way down the A30.
But why is there a gap and what is the trade-off?
Motorway service stations have long charged higher prices due to convenience and limited competition. The AA’s research found many sites pricing fuel at nearly identical levels, especially along routes like the M1 and M4.
Cheaper motorway fuel does exist, but it’s scattered and often only found if drivers know exactly where to stop.
However, switching to A-roads isn’t always straightforward. Journeys can take longer, and congestion may reduce the benefit if you spend too long in traffic.
That makes timing so important – avoiding peak travel times could be key to maximising savings.
So, are A-roads the best option?
The AA analysis suggests that if you’re willing to plan ahead, the savings can be substantial – you’re looking at around £10 or more in savings for a full tank.
But the decision where to fill up your tank comes down to your priorities. Motorways offer speed and convenience, while A-roads offer lower prices.
A new government-backed “Fuel Finder” system has also been launched, providing near real-time fuel price data via mobile apps. With this, you’ll be able to compare prices more easily and save.
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