Anyone who has filled up at a motorway service station knows the sting โ fuel prices that are dramatically higher than what you'd pay a few kilometres off the highway. This isn't your imagination. Motorway fuel genuinely costs more, and the reasons are both structural and strategic. Here's why it happens and how you can avoid paying the premium.
The UK Motorway Problem
The UK has some of the most expensive motorway fuel in Europe. A 2025 RAC study found that motorway service stations charge an average of 20p per litre more than nearby supermarket forecourts. On a 60-litre tank, that's an extra 12 pounds โ just because you filled up at the wrong place.
The problem is worst on busy corridors. Filling up between London and Birmingham on the M40, or heading north on the M1 toward Leeds, you'll encounter services stations where unleaded regularly exceeds 160p/L while forecourts just off the junction are 20p cheaper. The same pattern holds on the M5 to Bristol and the M6 through the Midlands.
Highway Pricing in Australia
Australia's highway pricing is less extreme than the UK but still significant. Stations on major routes between cities โ the Hume Highway between Sydney and Melbourne, the Pacific Highway to Brisbane, or the Great Western Highway to the Blue Mountains โ often charge 10-20 cents per litre more than city stations.
In regional areas, the markup can be even higher simply because there are fewer stations and less competition. A small-town servo on a highway may be the only option for 100 km in either direction, giving it pricing power that city stations don't have.
Why Are Motorway Stations So Expensive?
Several factors drive the premium:
- Captive audience โ Drivers running low on fuel have no choice but to stop. The station knows you need them more than they need you.
- High operating costs โ Motorway sites pay premium rents to the highway operator, run 24/7, and maintain large facilities with food courts and amenities.
- Limited competition โ On a motorway, you can't easily compare prices or drive to the next suburb. There might be one station every 30-50 km.
- Convenience pricing โ Drivers are willing to pay more for the ease of not leaving the motorway, and stations price accordingly.
How to Avoid the Motorway Markup
The best strategy is simple: don't fill up on the motorway. Here's how to plan ahead:
- Fill up before you leave. Check Benzio for the cheapest station near your starting point and fill your tank before hitting the highway.
- Plan your stops. For long trips, identify fuel stops along your route that are just off the motorway โ a 2-minute detour can save you 15-20p/L in the UK or 10-15c/L in Australia.
- Know your range. Understand how far your car can go on a full tank so you can confidently skip the first (expensive) service station and wait for a cheaper option.
- Use fuel price apps. Benzio shows real-time prices along your route, so you can see exactly which stations are charging a premium and which are offering fair prices.
The Bottom Line
Motorway fuel is a convenience tax. If you plan ahead and fill up at competitive stations before or after your motorway drive, you can easily save 200-400 pounds per year in the UK or $150-300 in Australia. That's real money โ enough to cover a few tanks of fuel by itself. Use Benzio to compare prices in London, Sydney, Auckland, or wherever your journey starts, and never pay the motorway premium again.