Average prices this week
| Fuel | Week to 18 Oct 2026 | Change on week | 18 Sept 2026 |
|---|---|---|---|
| Petrol (E10) | 173.9p | -0.4p | 172.0p |
| Diesel (B7) | 198.8p | -0.6p | 195.6p |
Cheapest petrol retailers
| Retailer | Average petrol price | Stations |
|---|---|---|
| Costco | 165.8p | 22 |
| Nicholl | 165.9p | 5 |
| Maxol | 166.5p | 93 |
| Emo | 166.7p | 18 |
What it costs to fill up
At these prices, filling a 55-litre petrol tank costs about £95.65, and a 55-litre diesel tank about £109.34. Shopping at a retailer 8p below average saves about £4.40 on a petrol fill-up.
Work out the cost of a trip with our fuel cost calculator, or check your real economy with the MPG calculator.
Fuel duty could change after Christmas
Fuel duty is 52.95p a litre, including a 5p cut that runs until 31 December 2026. What happens next is expected in the Autumn Budget on 28 October.
About these figures
Prices are averages from Fuel Finder UK's weekly Price Pulse, which uses open data from the government's Fuel Finder scheme. It takes one closing price per station per day and weights every station equally, based on about 8,000 station prices for each fuel.
Sources
- Fuel Finder UK: Price Pulse, week ending 18 October 2026
- HMRC: Amended fuel duty rates for 2026 to 2027
Facts checked against the sources above on 20 October 2026. Spotted something out of date? Tell us.
