Week commencing 12 October 2026 · report in progress
Petrol falls 1.8p and diesel 1.1p in a week
UK fuel price report for the week commencing 12 October 2026: average petrol and diesel prices, the biggest cuts and rises, and how the oil market is shaping what you pay at the pump.
Published 12 October 2026 · FuelCosts.co.uk analysis of UK Government Fuel Finder data
The average price of petrol (E10) across UK forecourts was 173.4p per litre in the week commencing 12 October 2026, down 1.8p on the week before, while diesel averaged 198.3p per litre, 1.1p cheaper than the previous week.
Among the pricier grades, drivers paid an average of super unleaded at 188.7p (down 3.2p week on week) and premium diesel at 214.9p (down 3.3p week on week).
What it means for a full tank
At this week's average prices, filling a typical 55-litre family car with petrol cost around £95.37, about 99p less than a week earlier. The same fill with diesel came to around £109.06, about 61p less than a week earlier. Shopping around matters just as much as the national trend: with the cheapest local forecourt often several pence below the average, the same tank can cost £2–3 less a few streets away.
About these figures
Figures are calculated from daily UK-wide price observations reported to the Government's Fuel Finder scheme by stations that updated their prices during the week. Because forecourt prices vary widely within any town, the cheapest local station is often several pence below these averages.
At its peak, 468 forecourts contributed petrol prices on a single day during the week. Oil prices are Brent crude spot prices published by the US Energy Information Administration.
The numbers
Petrol (E10) averaged 173.4p per litre and fell 1.8p on the week before. Diesel averaged 198.3p per litre and fell 1.1p on the week before.
Find the cheapest fuel near you with our postcode search, see today's biggest price drops, or learn why supermarket fuel is cheaper. Journalists are welcome to cite these figures with a link to FuelCosts.co.uk.