Guides
Short, practical guides to fuel prices and running costs, with today's figures from our data.
E10 or E5 Petrol: Which Should You Buy?
E10 is the standard unleaded in Great Britain and E5 is the dearer "super" grade. What the difference is, which cars need E5, and what it costs per tank today.
Updated 7 Nov 2026
How to Find Cheap Petrol and Diesel Near You
Where fuel is cheapest in the UK, how much brands differ today, and when it is worth driving further to fill up.
Updated 7 Nov 2026
How to Work Out the Fuel Cost of a Journey
The simple formula for petrol or diesel cost per journey in the UK, worked examples at today’s prices, and how to convert mpg and litres per 100 km.
Updated 7 Nov 2026
Updated 7 Nov 2026, 00:00 GMT