Use Case
A New Driver's Guide to Finding Cheap Petrol in the UK
New to driving? Learn how to find cheap petrol, whether supermarket fuel is safe, and how to use WorthThePump to make sure a cheaper station is actually worth visiting.
Potential saving
Save £300+/year
from your first year of smart fuelling
?The problem
When you start driving, nobody explains fuel pricing. You fill up wherever seems convenient, assume the local BP is the same price as the Tesco down the road, and don't know whether cheap supermarket petrol is actually safe for your car. The fuel bill takes a bigger chunk of your budget than you expected, and you don't yet have the habits to manage it efficiently.
✓How WorthThePump helps
WorthThePump is designed to be as simple as possible for exactly this situation. Type your plate number — we look up your car automatically. Tell us roughly what you spend on a fill. We show you a map of every petrol station nearby with clear colour coding: green means the detour is worth it, red means it's not. No confusing maths, no setting up an account, no subscription.
- Automatic car lookup by registration plate — no need to know your MPG or fuel type
- Plain-English verdict on every station: 'Worth It' or 'False Economy', with the net saving shown clearly
- Colour-coded map makes the best choice visually obvious — no spreadsheets needed
- Works for used cars, first cars, and any UK-registered petrol or diesel vehicle
Worked example
Vauxhall Corsa 1.2 SE
Real-world MPG: 46 • Fill amount: £40
Nearest station
194p/L
Cheaper station
179p/L
Net saving
£4.10
✅ Worth it — a quick habit that saves £213/year
Common questions
Is supermarket petrol (Tesco, Asda, Sainsbury's) safe for my car?
Yes, completely. All petrol and diesel sold at UK forecourts — supermarket or branded — must meet the same government standard (BS EN 228 for petrol, BS EN 590 for diesel). The quality is identical. The only difference is price. Supermarkets typically sell 5–15p/litre cheaper than branded stations like Shell or BP.
What is MPG and why does it matter?
MPG stands for miles per gallon — it measures how far your car travels on one gallon of fuel. The higher the MPG, the more fuel-efficient your car is. A Ford Fiesta might achieve 45 MPG; a Range Rover might manage 25 MPG. WorthThePump uses your car's MPG to calculate how much fuel a detour to a cheaper station burns — and whether the price saving outweighs that cost.
How do I know if I'm paying too much for petrol?
Check the average UK petrol price at the RAC or AA fuel price trackers, then compare against what you're paying locally. If your local station is more than 5p/litre above the national average, there's likely a cheaper option nearby. Use WorthThePump to find it and confirm the detour is worth making.
Do I need to create an account to use WorthThePump?
No. WorthThePump is completely free to use with no account required. Enter your plate, your fill amount, and your radius — that's it. No email, no sign-up, no subscription. Your registration plate is used only to look up your car and is never stored for anonymous users.
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.