Gadkari clears E100 fuel framework, paving way for ethanol-only vehicles in India

India has approved a regulatory framework for 100% ethanol (E100) as a vehicular fuel, allowing automakers, fuel retailers and testing agencies to develop and deploy ethanol-powered vehicles. The move goes beyond the E20 blending programme and aims to reduce crude oil imports, promote biofuels and support farmers.

India has formally cleared the regulatory framework for the use of 100% ethanol (E100) as a vehicular fuel, a move that could accelerate the rollout of ethanol-powered cars and two-wheelers while deepening the country’s push to cut crude oil imports.

Union Road Transport and Highways Minister Nitin Gadkari on Saturday said he had signed the regulations authorising E100 fuel, creating a legal framework for automakers, fuel retailers and testing agencies to begin commercial deployment of pure ethanol-powered mobility solutions.

“I signed the file at 8 pm today,” Gadkari said while addressing the Sugar, Ethanol & Bio-Energy India Conference in Nagpur. The approval, he said, would help reduce India’s dependence on imported fossil fuels and expand the use of domestically produced biofuels.

The decision marks a significant step beyond India’s ethanol-blending programme, which has focused on increasing ethanol content in petrol and is now nearing nationwide implementation of E20.

By creating a regulatory pathway for E100, the government is effectively enabling vehicles designed to run entirely on ethanol, opening a new technology route alongside electric, CNG, hybrid, and hydrogen-powered mobility.

Gadkari said flex-fuel vehicles are already entering the market. “Maruti Suzuki has launched the WagonR flex-fuel vehicle, and Hero has introduced motorcycles that can run on 100% ethanol,” he said.

The minister added that more automakers are preparing to enter the segment. “Toyota and Hyundai are also expected to launch vehicles that can run on 100% ethanol,” he said.

The regulatory clearance gives manufacturers the certainty needed to accelerate investments in flex-fuel engines and ethanol-compatible fuel systems after years of pilot projects and prototype showcases.

For the automotive industry, the move creates an additional decarbonisation pathway at a time when manufacturers are investing across multiple technologies.

Unlike conventional petrol-powered vehicles, E100-compatible vehicles require specialised engine calibration and fuel-system components because ethanol absorbs moisture more readily and can be more corrosive than petrol.

The approval could spur fresh investments in dedicated flex-fuel platforms, localisation of components and ethanol-compatible powertrains, particularly among manufacturers seeking alternatives to full electrification.