Backlash Against Ethanol-Blend Petrol Intensifies In India As Carmakers Face Scrutiny

India's flagship ethanol-blending programme is facing a serious public backlash, with drivers across the country voicing complaints about reduced fuel efficiency and engine performance — and the controversy now drawing in carmakers who face questions about whether their vehicles are adequately suited to the blended fuel.

The E20 programme, which blends up to 20% ethanol into petrol, is a central plank of the government's energy transition and agricultural support strategy, designed to reduce dependence on imported crude oil and provide a market for domestic sugarcane and grain producers. But the policy is running into resistance at the pump. Drivers have described noticeably lower mileage, and anecdotal complaints have spread rapidly on social media, with one vivid description comparing the fuel's effect to a smoothie tasting of cough syrup.

Reuters reported that the backlash is intensifying and putting carmakers in the dock, raising the question of whether automobile manufacturers adequately communicated the implications of higher ethanol blends for existing vehicle fleets — many of which were not designed with E20 in mind. Consumer groups and auto-industry watchers have called for clearer labelling and a transparent review of the programme's rollout timeline.

The government has so far shown no sign of retreating from its E20 targets. But the widening discontent signals that the transition from fossil fuels to blended biofuels, however strategically sound, carries real political and practical costs when rolled out at scale without fully addressing consumer concerns.