# India Approves E100 Ethanol for Flex-Fuel Vehicles: What Changes for Drivers

URL: https://technosports.co.in/india-approves-e100-ethanol/  
Published: 2026-10-28  
Updated: 2026-10-28  
Author: Sudeshna Ghosh

India’s government has updated its motor vehicle rules to allow E100, fuel made of up to 100% ethanol, in flex-fuel vehicles. Existing E20 cars stay compatible with today’s petrol and are not meant to run on E100.

## What Is Changing E100 Ethanol

Reports on X, including [this trending summary](https://x.com/i/trending/2114677284590305435), say the amendment was notified on [October 23](https://technosports.co.in/dorothy-ott-release-keerthy-sureshs-karthik/). It follows Union minister Nitin Gadkari’s approval of the E100 framework in June, shortly after Maruti Suzuki showed a flex-fuel Wagon R and Hero MotoCorp showed ethanol-compatible bikes.

| Point | Details |
| --- | --- |
| Fuel allowed | E100 (up to 100% ethanol) in flex-fuel vehicles |
| Existing cars | E20 vehicles stay compatible with current fuel and should not use E85 or E100 |
| Higher blends | E20-plus fuels only in flex-fuel vehicles |
| First pumps | Reportedly Delhi-NCR and Mumbai-Pune-Nagpur routes |
| Claimed savings | Reportedly ₹25 to ₹30 a litre (unverified) |

![](https://images.technosports.co.in/2026/10/India-Approves-E100-Ethanol-for-Flex-Fuel-Vehicles-What-Changes.avif)

## Why It Matters

- **Oil imports:** India imports over 85% of its [crude oil](https://technosports.co.in/crude-oil-at-80-by-2027-the-supply-demand/), so more ethanol could ease the import bill.
- **Farmers:** Demand for ethanol supports the sugar and bio-energy sector.
- **Brazil model:** Flex-fuel cars that run on any petrol-ethanol mix are common there.

## The Catches

- Flex-fuel vehicles need different engine calibration and fuel-system parts, so ordinary cars cannot simply switch.
- Dealers expect early sales to be mostly two-wheelers, and pump coverage will start small.
- Critics worry that more sugarcane for fuel could affect food supplies and prices.

Read about [flex-fuel vehicles](https://en.wikipedia.org/wiki/Flexible-fuel_vehicle) and [ethanol fuel](https://en.wikipedia.org/wiki/Ethanol_fuel). More news is on [TechnoSports](https://technosports.co.in/category/technology/).

## Frequently Asked Questions

Can my current petrol car run on E100?

No. Existing E20-compatible vehicles need major changes to run on E100, which is why dedicated flex-fuel vehicles are required.

When will E100 pumps open?

Initial pumps are reportedly planned for Delhi-NCR and the Mumbai-Pune-Nagpur corridor. No dates are confirmed. *Sources: [X trending summary](https://x.com/i/trending/2114677284590305435), [Autocar India](https://www.autocarindia.com/car-news/four-maruti-cars-launching-in-2026-439960), [The Wire](https://thewire.in/energy/have-approved-rules-for-use-of-e100-says-gadkari).*