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Vasim Sayyed
•1dHey, I'm excited to share that I've booked Hyundai Exter as suggested by you guys. But still anxious about the ethanol rollout coming in a few months. Please shed some light on this. Thanks.
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Autocar India
The Hyundai Exter you’ve booked is E20 fuel compatible from the factory, so it is designed to run on the new petrol without any issues. Hyundai has updated its entire recent petrol lineup to support E20, so you are not buying into any risk or uncertainty.
Now, what actually changes with E20 in real life? The fuel itself is just petrol with 20% ethanol, and India has already moved towards making this the standard across pumps. For cars like yours that are built for it, there is no mechanical downside. The engine, fuel lines and seals are all designed to handle it.
What you might notice is minor and not something to stress about. There can be a small drop in mileage because ethanol has slightly lower energy content. Performance and drivability remain largely the same in daily city driving, especially in a car like the Exter, which is tuned for ease, not outright performance.
The concerns you’re hearing mostly apply to older cars that were not designed for E20.

Hyundai Exter
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Posted on: 24 Apr 2026
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