New Delhi, Oct. 13 -- The nationwide rollout of E20 petrol in India, which became mandatory in April 2025, is causing significant concerns among vehicle owners, a recent survey conducted by LocalCircles revealed. The survey highlights a near doubling in the percentage of old petrol vehicle owners attributing increased maintenance costs to the new fuel blend over the past two months. This development is raising questions about the compatibility of older vehicles with the E20 blend and the broader implications for vehicle owners across the country.

According to the survey, 8 in 10 petrol vehicle owners with vehicles purchased in 2022 or earlier reported a reduction in fuel efficiency or mileage in 2025. This marks a notable increase from A...