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Fuel changes - what you need to know

Chloe Martell profile

Chloe Martell

September 12, 2019

News 2 min read

If you’ve filled up your car with fuel in the last month or so, you may have noticed that the way fuel is labelled has changed. If you’re anything like me – you’ll know green is petrol and black is diesel, right? Well, there has been a small change, so it’s best to know which is which so you’re not stuck when you’re at the pump!

It’s the same fuel

Don’t worry – the fuel itself hasn’t changed, it’s just the way in which they’re labelled (they’re still green and black – phew!). The labels now use a symbol for petrol and diesel, plus a letter and a number. This is to tell you the type of renewable fuel it is, and the maximum percentage of the relevant renewable fuel it contains.

Petrol is now labelled as E5 (this means it has up to 5% ethanol) and is on the pump in a circle sticker.  

Diesel is now labelled as B7 (this means it has up to 7% biodiesel) and on the pump is in a square sticker.

Where will you see the new labels?

The stickers for the different types of fuel will be on fuel dispensers, nozzles, and on new vehicles (so it should be easy to know which one you need to use). On new vehicles if you have the sticker, all you’ll need to do is match it to the pump – simple!

Why are renewable fuels added?

This has actually been happening for over 10 years. Renewable fuels like biodiesel and ethanol are added to UK petrol and diesel to reduce overall carbon dioxide (CO2) emissions, which is helping to meet the UK climate change targets.

What do I need to do?

You don’t need to do anything differently, apart from starting to recognise which pump sticker means what. Everything is as it was before – this is just good to know! For more information, head to

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Chloe Martell profile

By Chloe Martell

'As a new driver, I'm so eager to share my driving journey with you all - from when I was a learner, going through my test and all the aspects of my driving life now, including my love of cars!'  See more posts by Chloe

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