E20 Petrol in India: What Is Ethanol-Blended Fuel, Why It Exists, and How It Affects Your Vehicle (2026 Guide)
E20 petrol is now sold at almost every fuel station in India. Here’s a complete, fact-checked guide to what E20 ethanol-blended petrol is, why the government pushed it, how it’s made, its effect on mileage and engines, and what’s coming next — E27, E30, E85 and flex-fuel cars.