Mileage Drop, Engine Damage Fears Cloud India’s E20 Fuel Rollout
Mileage Drop, Engine Damage Fears Cloud India’s E20 Fuel Rollout
Brazil’s flex-fuel success offers lessons as Indian drivers face performance concerns
India’s ambitious rollout of E20 petrol, a 20% ethanol-blended fuel is drawing backlash from car owners worried about reduced mileage and potential engine damage, especially in vehicles manufactured before 2023 that are not built for higher ethanol content. The government hails the shift as a step toward greener mobility, reduced oil dependence, and better incomes for farmers, but on the ground, many motorists say they were neither consulted nor informed about the trade-offs.
Drivers of older BS3 and BS4 models report a 3–6% drop in fuel efficiency and warn of possible wear to fuel pumps and other engine components. The price of E20 remains the same as regular petrol despite ethanol’s lower production cost, leaving consumers with no direct savings to offset the losses in performance.
In contrast, Brazil, which has decades of experience with higher ethanol blends built public acceptance through a coordinated approach: mass adoption of flex-fuel vehicles, clear consumer education, price incentives, and firm government mandates. Industry experts say India’s challenge is not just supplying E20 but ensuring vehicle compatibility, public awareness, and transparent communication to avoid eroding trust in the transition.
