E20 fuel is a major step by India toward cleaner energy and reducing crude oil imports. It blends 20% ethanol with petrol, helping cut pollution and support farmers. However, challenges like lower mileage, engine wear, and older vehicle incompatibility still need solutions before nationwide adoption can be successful. https://jaideepboral.blogspot.com/2025/09/e10-vs-e20-petrol-real-truth.html