Hundreds of thousands of drivers have been warned their car isn't compatible with the new greener E10 petrol that is being rolled out across forecourts.
As of today, E10 has replaced E5 as the current standard for unleaded petrol across the majority of garages in the UK.
It comes as part of government plans to tackle climate change and reduce carbon emissions to net zero by 2050.
The difference between E10 and E5 petrol is that the former contains up to 10% ethanol - double the 5% amount found in E5.
If you accidentally use E10 when you shouldn’t have, it is unlikely to cause damage to your car straight away.
Experts say it could only cause serious harm if used repeatedly.
For example, its corrosive properties could damage seals, plastics and metals if used exclusively over longer periods.
The RAC estimates that 700,000 older vehicles shouldn't use E10 - these vehicles must instead opt to use more expensive E5 super unleaded which will cost more.
Some rural or very small forecourts will still have normal unleaded E5 even after the changes were introduced today.
All cars made after 2011 should be fine to fill up with E10, as well as the majority of vehicles made since the late 1990s.
This means it is older cars that could experience issues.
Are you having issues topping up with E10? Get in touch: firstname.lastname@example.org
You can check if your car is compatible with E10 on the Gov.uk website.
We've also broken down this information by manufacturer in a list below:
All models from model year 2008 are suitable for use with E10 petrol.
Older models should use E5.
E10 petrol can be use in all new Alfa Romeo models with petrol engines produced from January 2011.
In addition, E10 petrol is cleared for use in the following Alfa Romeo models with petrol engines:
If the above does not apply to your vehicle, use E5 petrol.
The following models can use E10 petrol.
Virage: models from 2010
The models below are not suitable for E10 and should continue to use E5 petrol.
Aston Martin V8: models before 2000
Audi drivers can use E10 petrol unless they have one of the following vehicles:
If your vehicle is listed above you should continue to use E5 petrol.
Bentley cars made after 2010 are suitable for use with E10 petrol, except for the Mulsanne model.
All petrol engine BMW models are cleared for the use of E10 petrol regardless of their year of manufacture.
However, drivers should still observe the minimum octane required as per the car manual.
The following Cadillac models can be used with E10 petrol:
All Chevrolet vehicles produced from the model year 2006 with a Euro 4 emissions compliant engine can be run with E10 petrol:
The following Chrysler Group models with petrol engines can use E10:
All cars with petrol engines are E10 (EN228) compatible since 1st January 2000.
Older petrol cars should continue to use E5.
The following Corvette models equipped with a petrol engine and regulated with catalytic converter and lambda probe can be used with E10 petrol:
All models since model year 2005 are suitable for use with E10.
If your car is older than 2005, then you should carry on using E5.
E10 compatible models after model year 2005:
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Fiat vehicles with petrol engines starting from 1st January 2001 (Euro 3 emission level) can use E10 except the following vehicles:
E10 is cleared for use in all petrol driven Ford models sold in Europe since 1992 excluding:
All Harley-Davidson models from Model Year 1980 are compatible with E10 fuel.
If your car is older than this, use RON 98 E5 fuel instead.
All Honda cars with fuel injection are compatible with E10 petrol (HONDA PGM-FI).
Hyundai cars with a petrol engine can use E10 petrol regardless of their year of manufacture.
Jaguar vehicles with petrol engines starting from model year 1992 can use E10.
Older models should continue to use E5.
E10 petrol is cleared for use in the following Jeep models with petrol engines:
Kia cars with a petrol engine can use E10 petrol regardless of their age.
All Land Rover vehicles with petrol engines starting from the model year 1996 can use E10.
E10 petrol can be used in all Lexus European petrol models made from January 1998, excluding:
E10 petrol is cleared for use in all models with petrol engines introduced in and from the year 2002, Mazda6 (GG/GY) and models with petrol engines introduced thereafter, namely:
*Mazda 2 (dy/de) *.Mazda 3 (bk/bl) *Mazda 5 (cr/cw) *Mazda mx-5 (nc) *Mazda cx-5 (ke) *Mazda 6 (gg/gy/gh) *Mazda cx-7 (er) *Mazda cx-9 (tb) *Mazda rx-8 (se)
Conditions are that the vehicle has not been modified and original parts have been used for maintenance and repair.
Older models, and those not listed above should continue to use E5 petrol.
You can use E10 petrol in most Mercedes Benz models except for the following:
E10 is cleared for use in all Mini models with a petrol engine after the re-launch of the Mini brand in the year 2000.
You can use E10 petrol in all Mitsubishi models with petrol engines except those equipped with the GDI engine (gasoline direct injection) until 2007 models.
E10 petrol is compatible for use in all models with petrol engines from 1st January 2000.
All cars and mopeds with petrol engines are E10 compatible since 1st January 2000.
Older petrol models should continue to use E5.
Porsche vehicles with petrol engines since the 1998 model year and all Boxster models with petrol engines since the 1997 model year can use E10.
The Carrera GT is not cleared for use with E10 petrol.
The following Renault models are not compatible with E10:
Petrol Renault cars built before 1997 should also continue to use E5 petrol.
E10 is cleared for use in all Rolls Royce models starting with model year 2003, the launch of the Phantom model.
The Gov.uk website provides no compatibility information for Rover as the manufacturer no longer trades.
It is therefore not recommended to use E10 petrol.
Skoda cars can use E10 with the exception of the following vehicles:
E10 petrol is cleared for use in all petrol engine Smart vehicles.
It says online that E10 petrol is cleared for use in all current production car models with petrol engines.
E10 petrol is cleared for use in all Toyota European petrol models made from January 1998, excluding:
All Vauxhall vehicles with petrol engines can use E10, apart from:
E10 is cleared for use in all Volkswagen petrol engine vehicles except for these models:
Volvo cars with petrol engines introduced to the market since 1976 should be fine to use E10.
E10 petrol is not cleared for a limited number of S/V40 models with petrol engines produced in the mid-1990s with engine type 1.8 GDI.