Ethanol-Blended Petrol Safe for Vehicles, Says Government Amid Public Concerns.
Amid rising concerns over the impact of 20% ethanol-blended petrol (E20) on vehicle performance, the Ministry of Petroleum and Natural Gas has assured consumers that the fuel is safe, even for older vehicles. In a detailed statement, the ministry called the fears “largely unfounded” and not supported by scientific evidence.
Extensive Testing Shows No Major Issues
In response to recent media reports, the ministry cited long-term testing on both carbureted and fuel-injected vehicles over 100,000 km. The results showed no significant difference in power, torque, or fuel efficiency between E20 and regular petrol.
Tests conducted every 10,000 km also assessed emissions and mechanical wear. Agencies like the Automotive Research Association of India (ARAI), Indian Institute of Petroleum (IIP), and Indian Oil Corporation’s R&D wing confirmed that even legacy vehicles experienced no unusual wear or engine trouble.
Fuel Efficiency Drop Is Minor, Not Drastic
One of the key concerns around E20 is reduced mileage due to ethanol’s lower energy content. The government acknowledged a 1–2% drop in fuel economy for vehicles designed for E10 and adjusted for E20. For older, non-calibrated models, it may range from 3–6%, but this can be mitigated through proper engine tuning.
Most new vehicles sold since April 2023 are already built or calibrated to handle E20, according to the Society of Indian Automobile Manufacturers (SIAM).
Corrosion Risks Addressed
Addressing fears of corrosion, the ministry clarified that corrosion inhibitors are already blended into E20, and all fuel specifications are defined by BIS and Automotive Industry Standards. In older vehicles, some rubber parts like seals and gaskets may need replacement after 20,000–30,000 km — a routine and low-cost maintenance issue.
Ethanol’s Environmental and Economic Edge
The government also emphasized E20’s environmental benefits. Ethanol is a renewable biofuel that cuts CO₂ emissions by 50–65% compared to petrol, depending on the source (sugarcane or maize). It also helps reduce oil imports, saving over ₹1.4 lakh crore in foreign exchange since 2014.
The ethanol blending programme has also boosted rural economies, enabling payments of ₹1.2 lakh crore to farmers and supporting biofuel production from rice, damaged grains, maize, and agricultural waste.
With a higher octane rating (~108.5 vs petrol’s 84.4), E20 also enhances engine performance, especially in newer high-compression engines.
Planned, Phased Rollout
Responding to criticism of a sudden rollout, the ministry pointed to the Ethanol Blending Roadmap (2020–25), which was released in 2021. The transition to E20, it said, has followed a phased and collaborative approach with automakers, fuel suppliers, and regulatory bodies.
The ministry concluded that narratives claiming ethanol-blended fuel harms vehicles are not backed by facts, and that E20 is a scientifically sound, eco-friendly, and economically beneficial step in India’s energy transition.
Comments are closed.