Super Unleaded Prices (E5)
Compare E5 super unleaded prices at UK forecourts. Use our comparison tool to find the cheapest premium petrol near you — covering 7,000+ stations with prices updated every 15 minutes.
About E5 Super Unleaded
E5 super unleaded is the higher octane petrol option at UK forecourts, rated at 97 to 99 RON with up to 5% ethanol content. Since September 2021, when E10 became the standard pump petrol, E5 has been repositioned as the premium grade — sold under names like Shell V-Power Unleaded, BP Ultimate Unleaded, and Esso Synergy Supreme+ Unleaded.
When E5 Is Worth It
E5 super unleaded is worth the extra cost if your car is not compatible with E10 (check the government's compatibility checker), if you drive a classic or vintage vehicle, or if your car's manufacturer specifically recommends 97+ RON fuel. For everyone else, E10 is the smarter choice — saving you over £200 per year.
Read our complete E10 vs E5 guide for a detailed comparison of compatibility, cost, and efficiency.
Finding Cheap Super Unleaded
E5 prices vary just as much as E10 between forecourts. Supermarkets tend to offer the lowest super unleaded prices, though the gap with branded stations is sometimes narrower for the premium grade. Use our comparison tool to check your local area, and see our fuel saving tips for more ways to cut costs.
Frequently Asked Questions
What is E5 super unleaded?
E5 is the premium grade of petrol sold at UK forecourts, containing up to 5% ethanol with a higher octane rating of 97 to 99 RON. Since E10 became the standard in 2021, E5 is sold as "super unleaded" or "premium unleaded".
Who needs E5 super unleaded?
E5 is needed for vehicles not compatible with E10 (generally pre-2011 cars), classic and vintage vehicles, some motorcycles, and cars whose manufacturer recommends 97+ RON fuel for optimal performance.
How much more does E5 cost than E10?
E5 super unleaded typically costs 15 to 18 pence more per litre than E10 standard unleaded. On a 50-litre fill, that adds £7.50 to £9 per tank, or £195 to £234 per year with fortnightly fill-ups.
Is E5 better for my engine?
For E10-compatible cars, there is no meaningful benefit to using E5. The higher octane only helps engines designed to take advantage of it. Using E5 "just in case" in a compatible car wastes money without providing any benefit.
Find the Cheapest Fuel Near You
Compare live prices across 7,000+ UK forecourts — updated daily from official CMA data.