India, July 22 -- The Central government has said E20 petrol may reduce fuel efficiency by 3-5% in some older vehicles originally designed for E10 fuel, but there is no verified evidence linking ethanol-blended petrol to widespread engine damage or vehicle breakdowns, according to information shared in Parliament.

Key Highlights Government says E20 petrol may reduce mileage by 3-5% in some older E10-compatible vehicles. No verified evidence of widespread engine damage due to E20 fuel, Parliament informed. E20 petrol offers higher octane rating, improved combustion and better anti-knock performance. Fuel efficiency depends on driving habits, maintenance, tyre pressure and other factors, the government said. New Delhi, July 22: The Centra...