India, Apr 29 : India has unveiled a major policy proposal aimed at reshaping its vehicle fuel ecosystem, signalling a decisive shift toward cleaner and domestically sourced energy. The government has moved to introduce higher ethanol-blended fuels, including E85 and E100, as part of its broader strategy to cut dependence on imported crude oil.
In a draft notification released by the Ministry of Road Transport and Highways, amendments to the Central Motor Vehicles Rules have been proposed to facilitate the use of advanced ethanol blends. The move is designed to expand the country’s fuel mix beyond the existing E20 standard and create a regulatory framework for vehicles capable of running on significantly higher ethanol concentrations.
Expansion Beyond E20 Benchmark
The proposal marks a new phase in India’s biofuel roadmap by formally recognising fuels such as E85 comprising 85% ethanol and E100, which is nearly pure ethanol. These fuels are expected to support the development of specialised or flexible fuel vehicles that can operate efficiently on varying ethanol blends.
India achieved its target of 20% ethanol blending in petrol in 2025, a milestone that strengthened its ethanol blending programme. The latest draft indicates a shift toward more aggressive blending levels, especially in the backdrop of volatile global oil markets and geopolitical uncertainties affecting supply chains.
The government has opened the draft for public consultation, after which the final framework will be notified.
Economic and Strategic Gains
Officials highlight that the ethanol blending initiative has already delivered substantial economic benefits. The Ethanol Blended Petrol programme has helped save millions of barrels of crude oil annually while significantly reducing foreign exchange expenditure.
Higher ethanol adoption is expected to further strengthen energy security, support domestic agriculture, and reduce carbon emissions—aligning with India’s long-term sustainability goals.
Efficiency Concerns and Transition Challenges
Despite the advantages, the transition to higher ethanol blends is not without challenges. Policy assessments, including those referenced by NITI Aayog, have pointed out that vehicles originally designed for lower ethanol content may experience a slight drop in fuel efficiency when using higher blends.
This issue is particularly relevant for vehicles manufactured between 2012 and early 2023, many of which were designed for E10 fuel compatibility. Although manufacturers began producing E20-compliant vehicles from April 2023, the shift toward even higher blends will require further technological adaptation.
Industry experts caution that without adequate upgrades in engine design and fuel systems, higher ethanol use could lead to long-term maintenance and performance concerns.
Industry Seeks Policy Support
Automobile manufacturers have urged the government to introduce supportive measures to ease the transition. The Society of Indian Automobile Manufacturers has recommended tax incentives on ethanol-blended fuels to offset potential efficiency losses, though such proposals are yet to be implemented.
At the same time, policymakers have indicated that the push for ethanol will continue, with ongoing discussions around future fuel efficiency norms and regulatory standards.
Learning from Global Models
India is also studying international practices to ensure a smooth transition. Countries like Brazil, where high ethanol blends are widely used, offer key lessons in infrastructure and policy design—such as dedicated fuel dispensers for different blends.
A long-term solution under consideration is the promotion of flex-fuel vehicles, which can operate on ethanol blends up to 100%. The government is working on updated testing norms to enable their commercial rollout, although widespread adoption is still in its early stages.