Mapped 99 RON
Common 99 RON retailer products can be labelled separately from generic Super unleaded E5.
Drivers searching for 99 RON usually care about more than price. The fuel label must be right, and the station still needs to fit the route.
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.
Common 99 RON retailer products can be labelled separately from generic Super unleaded E5.
Unclear E5 products remain E5 so drivers are not misled into choosing the wrong fuel.
The app can compare 99 RON price, route position, fuel remaining and detour fuel cost.

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.