India’s E20 ethanol‑blended petrol sparks protests and government rebuttals

The Indian government has repeatedly clarified that the mandatory 20 % ethanol blend (E20) in petrol does not invalidate vehicle insurance or warranties, and it cites scientific testing and a phased rollout to back the policy. Officials say the programme reduces crude‑oil imports, saves roughly ₹1.9 lakh crore in foreign exchange, cuts carbon emissions and raises farmer incomes.

Motorists across the country have organised protests in New Delhi, complaining of a modest drop in fuel‑economy (about 3‑5 % according to industry figures) and higher maintenance costs for older vehicles not originally certified for E20. A nationwide survey reported that 53 % of owners view the rollout as ineffective, with many older‑car drivers claiming mileage losses above 10 %.

Automakers, including Maruti Suzuki, Toyota Kirloskar and Hyundai, maintain that extensive lab and on‑road testing shows no widespread engine damage. They argue that any efficiency loss is offset by higher octane benefits and that the fuel is safe for vehicles certified as E20‑compatible. Opposition politicians and some state leaders have labelled the mandate an “experiment” and called for consumer choice of fuel blends.