Petrol and diesel fuel RENAMED at filling stations

Fuel names changed in the UK

Petrol and diesel have got themselves a new identity. You’ll now find petrol labelled E5 and diesel labelled B7 at filling stations.

Fear not, though: it remains obvious exactly which is which, with pumps keeping the ‘unleaded’ and ‘diesel’ labels, too.

What are the new fuel labels?

Fuel names changed in the UK

E5 is petrol and B7 is diesel, but what does it all mean? Well, the E stands for ethanol, while the 5 refers to how much of the ethanol is synthetic. Similarly, in B7 diesel, the B stands for biodiesel and the 7 stands for the percentage of it that’s renewable.

In short, the letter refers the renewable in the fuel, and the number is the percentage of it.

The labels will be in their own distinct shapes, to best-avoid confusion. E5 will be circled, while B7 is in a square. This in addition to the original green and black colours remaining the same.

Why are renewable fuels added?

Fuel names changed in the UK

Aside from eco credentials, the addition of renewable fuels cuts carbon dioxide (CO2) production.

According to government figures, blending renewable fuels reduces CO2 emissions equivalent to taking a million cars off the road.

E10 and ‘no biodiesel’ – explained

Finding the cheapest petrol and diesel

You may also see E10 fuel, with a higher amount of renewable ethanol. It’s fine for any modern car, but we’d suggest you avoid putting it in your classic. It can be bad for fuel tanks, lines and fuel containment/distribution equipment not originally designed for it.

The government says nearly all cars homologated since 2000 should be okay to fill with E10. Not that it matters much to us, given the UK hasn’t yet joined the USA, Europe and Australia in offering it.

If your car has a sticker saying ‘no biodiesel’ B7 is still fine. B7 is normal diesel. What you mustn’t fill up with are high biodiesel blends or 100 percent biodiesel.

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