Use Case
Fuel Strategy for Long Distance Drivers and Road Trips
Motorway service stations charge up to 20p/litre more than nearby forecourts. Plan your fuel stops on long journeys and save £20+ on a 300-mile trip.
Potential saving
Save up to £20
on a single 300-mile road trip
?The problem
On a long journey, you see the motorway services coming up and wonder: should I fill up here at 199p/litre, or risk running low and fill up at the next junction at 179p/litre? Motorway service stations routinely charge 15–25p/litre more than nearby forecourts — on a 70-litre tank that's £17 you're leaving on the table. Without knowing where the cheaper stations are, most drivers pay the convenience premium out of necessity.
✓How WorthThePump helps
Before you set off, use WorthThePump to identify fuel stops along your route. Our live price data (refreshed hourly from 37,000+ UK stations) lets you plan exactly where to fill up. Enter your car's plate, how much you want to spend, and check prices along your route. You'll know whether to fill up at home, at a junction before the motorway, or at a specific services — with real numbers to justify the decision.
- Live price data updated every hour — you're not looking at yesterday's prices
- Map view shows every station within range, so you can plan a pitstop at a Tesco or Sainsbury's just off the A-road
- Accounts for your car's MPG when calculating whether it's worth pressing on vs filling up now
- Works for both petrol and diesel — diesel drivers often face bigger regional price variation
Worked example
Toyota RAV4 Hybrid
Real-world MPG: 48 • Fill amount: £70
Nearest station
199p/L
Cheaper station
178p/L
Net saving
£14.20
✅ Worth it — M1 services vs Tesco off junction 15A
Common questions
How much more expensive are motorway service stations?
Motorway service stations typically charge 15–25p/litre more than nearby supermarket forecourts. On a 60-litre fill, that's £9–£15 extra per stop. If you make two fuel stops on a long journey, you could easily overpay by £25–£30 compared to planning ahead.
How do I find cheap petrol near motorway junctions?
Use WorthThePump's map view to search for stations within 5–10 miles of a specific location. Type in a junction postcode or just pan the map. Supermarket forecourts near motorway junctions (Tesco, Asda, Sainsbury's) are usually the best value — often 10–15p/litre cheaper than the services.
Should I fill up before a long journey or wait until I get there?
It depends on prices in your home area vs your destination. Check both with WorthThePump before setting off. If petrol is cheaper at home, fill up fully before you leave. If it's cheaper at your destination, fill the minimum to get there. For most UK regions, filling up at a local supermarket before a motorway journey is the winning strategy.
Does the calculator work for motorhomes and campervans?
Yes. Enter the vehicle registration and the DVLA lookup will retrieve the MPG and fuel type. Larger vehicles naturally burn more fuel on detours, so the break-even calculation is more conservative — but the map and price data work identically.
Related reading
Check your actual saving now
Enter your plate number — we look up your car automatically and show you every nearby station ranked by net saving.