India has given a tax break to petrol blends that most motorists cannot buy today.
Through a recent Central Excise notification, the government has exempted petrol . The move has sparked an obvious question: if India has only recently completed its shift to E20 petrol, who exactly is this new tax exemption meant for?
The answer lies in India’s next phase of its ethanol journey.
The latest notification does not mean E22, E25 or E30 petrol will immediately become available at fuel stations. There is currently no widespread retail sale of petrol with ethanol content beyond 20% in India. Instead, the move creates a tax framework for future higher ethanol blends as the country prepares for the next stage of its plan to reduce dependence on imported crude oil.
India achieved its target of 20% ethanol blending in petrol in 2025-26, six years ahead of the original 2030 deadline.
The country imports nearly 87% of its crude oil requirement, and ethanol blending is seen as a way to replace a part of those imports with domestically produced fuel.
The government also sees ethanol as a way to support the domestic sugar and grain industries and improve India’s long-term energy security.
The push towards higher blends has already started on the regulatory front. In May 2026, the Bureau of Indian Standards notified IS 19850:2026, which lays down technical specifications for E22, E25, E27 and E30 petrol blends.
The standards cover fuel composition, blending procedures, impurity limits, testing methods, safety requirements and quality benchmarks for these fuels.
Oil marketing companies are also upgrading storage, blending and distribution systems to support higher ethanol blends and specialised fuels for flex-fuel vehicles, which can operate on fuels ranging from E20 to E85.
The biggest question is
India’s current vehicle fleet was largely designed for lower ethanol concentrations such as E5 or E10. Industry estimates suggest nearly 80% of vehicles sold over the past 15 years were originally designed for lower ethanol fuels.
While automobile manufacturers have developed E20-compatible vehicles in recent years, higher blends such as E30 may require further changes in engine design, fuel systems and material compatibility.
This is why the immediate beneficiaries of the new tax exemption are likely to be oil companies, fuel suppliers and manufacturers developing future ethanol-compatible vehicles rather than ordinary motorists.
Countries such as Brazil already use much higher ethanol blends through flex-fuel vehicles, and India appears to be building the framework for a similar ecosystem.
India’s move towards higher ethanol blends comes even as some vehicle owners continue to report concerns after the E20 rollout.
A LocalCircles survey conducted among over 50,000 owners of petrol vehicles manufactured in 2022 or earlier across 301 districts found that one in two owners reported a reduction in mileage since early 2025.
Among 24,710 respondents who answered the mileage-related question, 25% said their vehicle’s fuel efficiency had dropped by more than 20%, while 13% reported a decline of 10% to 15%.
The survey also found that 29% of vehicle owners reported unusual wear and tear or repairs related to parts such as the engine, fuel line, fuel tank or carburettor.
Many owners have complained about issues such as lower pickup, increased vibration, harder cold starts and increased engine heating.
However, the government has defended the ethanol programme. Petroleum Minister Hardeep Singh Puri has maintained that ethanol-blended fuel has minimal impact on vehicles. The Automotive Research Association of India (ARAI) has estimated that E20 may lead to only a 1% to 6% reduction in fuel efficiency.
In September 2025, the Supreme Court also dismissed a plea seeking continued availability of ethanol-free petrol, stating that consumer preference cannot dictate national energy policy.
For now, the answer appears to be no.
The government has not announced a timeline for introducing E22, E25, E27 or E30 petrol at retail outlets. The new excise exemption is largely a preparatory step that gives fuel companies and vehicle manufacturers a policy signal about India’s long-term direction.
The bigger challenge will be balancing the country’s energy security goals with the concerns of millions of motorists, especially owners of older petrol vehicles who are still adapting to E20.
The tax exemption shows that India’s ethanol roadmap does not stop at E20. But before higher blends become common at fuel stations, questions around vehicle compatibility, fuel efficiency and long-term maintenance costs are likely to become even more important.