Lexus and E10 petrol – can I use it in my car?

As part of the government’s strategy to reduce harmful emissions from transport, the new E10 petrol grade will be introduced across the United Kingdom from September 2021. Our guide to Lexus and E10 petrol answers a few questions about the change.

While it retains the same 95-octane rating as existing unleaded petrol, E10 petrol will contain a much higher proportion of ethanol. Currently, all petrol supplied at filling stations contains a five percent mix of ethanol, which is why it is known as E5. However, from September 2021, that proportion will be doubled in standard grade petrol and the fuel will be identified by the code E10.

This change will not affect Lexus owners with a diesel-powered vehicle.

Lexus and E10 petrol – which models can use the new fuel?

The good news is that the vast majority of Lexus models with a petrol engine or hybrid powertrain and that were officially supplied within the European market since January 1998 are compatible with E10 petrol. The only exceptions to this rule are the following models:

  • Lexus IS 250 with 2.5-litre V6 4GR-FSE engine made between August 2005 and September 2007
  • Lexus GS 300 with 3.0-litre V6 3GR-FSE engine made between January 2005 and September 2007
  • Lexus LS 460 with 4.6-litre V8 1UR-FSE engine made between August 2006 and September 2007

E10 petrol

How can I check if my Lexus can use E10 petrol?

All new Lexus models manufactured since 2011 and equipped with a petrol engine or hybrid powertrain are compatible with E10 fuel. This can be confirmed by checking the owner’s manual or looking at the information printed on the inside of the fuel filler flap. If you are still unsure, use E5 petrol, which will continue to be dispensed from the super unleaded pump at most filling stations.

You can also use this checker tool created by the government to support the E10 transition.

Can I use E10 petrol in my imported Lexus?

If your Lexus is an imported model that was not official sold in European markets, we recommend staying on E5 by using super unleaded, which has a higher octane rating. Having received queries from owners regarding specific imported models, we are investigating this further.

E10 petrol

Lexus and E10 petrol – why is the ethanol content being increased?

Ethanol is a renewable, non-fossil biofuel produced from sustainable sources. It is made using by-products from the farming industry, such as those from wheat, corn and sugar crops.

By increasing the proportion of biofuel in petrol, the content of fossil fuel and therefore our reliance on it decreases. This will reduce the overall levels of CO2 (carbon dioxide) emissions from vehicles and help the government achieve its climate change targets. It has been calculated that this change from E5 to E10 will cut harmful transport emissions by 750,000 tonnes a year – the equivalent of taking 350,000 cars off the road.

Why isn’t the ethanol content much higher?

The composition of ethanol is different to that of a crude oil based fossil fuel such as petrol. Higher blends of ethanol can cause corrosion of some rubbers and alloys used in the engine and fuel systems of some older vehicles.

A small number of these vehicles will need to continue using E5 petrol, and this will remain widely available at filling stations in super unleaded grade.

E10 petrol

Lexus and E10 petrol – is this change only happening in the UK?

No. In fact, E10 petrol is already common throughout the world. It has also been the reference fuel used for all new car emissions and performance testing since 2016.

Read more How economical is a used hybrid Lexus?

778 comments

  1. Hi, I have a Lexus LS400 1995, registration P228APG.
    Will I be ok to use E10?
    I have filled it up a few times with E10 and although it has never stalled she has done so twice on the same day and has started juddering whilst driving.
    Your advice would be appreciated,
    Thank you, Dawn

    1. Hello Dawn,
      Unfortunately, your LS400 is not compatible with E10 petrol.
      We would recommend you now continue to use E5 petrol.
      Furthermore, if your car continues to stall, we would recommend taking it to a Lexus Centre to be physically inspected.
      Thanks.

      1. Hello thank you I feared as much, I had her booked in for a diagnostics, however, I was told much the same thing. My service engineer suggested running the car and replacing the petrol over a short period of time. I think the government have been very lax in not informing the general public of the troubles this E10 can cause to older cars.
        Many thanks for your help. Dawn

  2. Hi
    I have a 4GR-FSE engine.. what’s the reason my car can’t not run on E10 and what would happen if I did use it once or twice already? Have now made the switch to Vpower E5 but wonder if anything could have been possibly damaged from running,… I’ve say about 50l of E10 through its system….

    Thank you

    1. Hello Simi, thanks for your comment.

      The E10 fuel contains higher blends of ethanol which may cause corrosion of some rubbers and alloys used in the engine and fuel system of your vehicle. Please revert back to the E5 fuel and get in touch with your local Lexus Centre so they can inspect your vehicle in person for any damage.

      Thanks.

    1. Hello Adam, thanks for your comment.

      Your IS250 is not compatible with the E10 fuel. Please continue to use the E5 variant.

      Thanks.

    1. Hello Jay, thanks for your comment.

      Your IS250 is not compatible with the E10 fuel. Please continue to use the E5 alternative.

      Thanks.

  3. Hi, I have IS250 and my registration SH58 HHL,
    Is it ok to use E10? Thanks.
    Your advice would be appreciated.
    Regards,
    George

  4. Hi there my question is different can I use E5 on daily base instead of using E10 as I believe E5 gives me more drive time than E10.
    My car is Lexus is300H 2016

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