Government May Delay Shift to 25% Ethanol Blend Amid Consumer Concerns
The Indian government is likely to postpone the introduction of E25 petrol—a blend containing 25% ethanol—following widespread consumer backlash over the rapid transition to E20 fuel. The decision to advance the E20 rollout to 2025 from the original target of 2030 has led to complaints about reduced fuel economy and potential damage to older vehicles.
Two recent government measures—an excise duty exemption for fuels with 22–30% ethanol and new Bureau of Indian Standards (BIS) norms for these blends—had raised expectations that E25 would be introduced soon. However, a high-level meeting last week reportedly advised addressing technical concerns before proceeding further.
A senior government official told The Indian Express: “There is a view that the transition beyond E20 will need to be spaced out. The idea is to go to E25 in a calibrated, graded manner for existing vehicles.” The government now wants to give sufficient time for ecosystem readiness and avoid repeating the rushed E10-to-E20 shift.
Consumer complaints center on a drop in mileage, as ethanol has lower calorific value than petrol. Older vehicles, especially two-wheelers and cars not designed for higher ethanol blends, also face difficulties starting in cold weather and potential corrosion due to ethanol’s hygroscopic nature. Automakers have warned that E25 could damage engine parts in older internal combustion engines.
The government acknowledges that some concerns may be “overblown” but insists on scientific assessment. It has asked original equipment manufacturers (OEMs) to address consumer issues. The move toward higher ethanol blends is part of India’s strategy to reduce carbon emissions and dependence on fossil fuel imports, but the pace of implementation is now under review.
