A newspaper report has highlighted growing concerns among motorists and automakers over India’s rapid shift to E20 fuel, especially regarding mileage loss, older vehicle compatibility, corrosion risk, lack of fuel choice at petrol pumps and the possible move towards higher ethanol blends such as E25, E85 and E100. The issue is important for UPSC because it links energy security, biofuel policy, automobile regulation, consumer protection, agriculture, emissions and India’s transition towards cleaner transport fuels.