Fuel Guides
Practical, plain-English answers to the questions UK drivers ask most about fuel. No jargon, no sales pitch — just what the differences between fuels and forecourts actually mean for your wallet. When you're ready to fill up, use our station search or the live price map to find the cheapest fuel near you.
Tesco, Asda, Sainsbury's and Morrisons usually undercut branded forecourts. Is the fuel any different, and is there a catch?
Read the guideE10 became the UK's standard petrol in September 2021. What changed, which cars can use it, and does E5 still make sense?
Read the guideSuper unleaded and premium diesel cost noticeably more per litre. When does the extra octane or additive package actually pay off?
Read the guideMotorway services are consistently the priciest places to fill up in the UK. Here's why, and how to avoid paying the premium.
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