Route & Fuel UK iconRoute & FuelCheaper fuel decisions
Why it matters

A cheap E5 price is not always a 99 RON answer.

Route & Fuel treats public E5 as premium petrol, then applies common retailer RON rules for 99 RON labels where reliable. If the product cannot be determined, it stays generic rather than guessed.

Mapped 99 RON

Common 99 RON retailer products can be labelled separately from generic Super unleaded E5.

Generic fallback

Unclear E5 products remain E5 so drivers are not misled into choosing the wrong fuel.

Route and range checks

The app can compare 99 RON price, route position, fuel remaining and detour fuel cost.

Route & Fuel app showing mapped 99 RON fuel near a driver
99 RON without guessworkPremium labels should be useful and conservative.
Official data and sources

E5, E10 and 97+ octane

GOV.UK explains E5 remains the super grade at 97+ octane and advises drivers to check vehicle compatibility and use the correct label. Route & Fuel adds product mapping where public E5 data alone is not specific enough.