75-80 million older two-wheelers were never built for E20.

Owners absorb corroded fuel parts and lost mileage under India’s ethanol mandate.

Chief Economic Adviser Nageswaran wants E10 restored at pumps, since ethanol carries 6-7% less energy than petrol.

He also wants a land-and-water study before any blend rises past 20%.

Sources: MoneyControl, News18