The Centre has strongly defended its push for 20% ethanol-blended petrol, saying it offers multiple benefits for both the environment and vehicle performance. E20 fuel cuts carbon emissions by 30% compared to E10 fuel, while also improving acceleration and ride quality.

The Ministry of Petroleum and Natural Gas acknowledged complaints from some motorists about reduced mileage and possible engine issues in vehicles not tuned for E20. However, it clarified that these concerns were anticipated as far back as 2020 and studied in detail by the government and NITI Aayog’s Inter-Ministerial Committee.

The ministry explained that fuel mileage depends on many factors beyond fuel type, such as driving habits, maintenance, tyre pressure, wheel alignment, and air conditioning use. In E10 vehicles, any drop in efficiency due to E20 has been minimal.

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Why Does E20 Work Better?

Ethanol has a higher octane number (108.5) than petrol (84.4), making E20 ideal for modern high-compression engines. Vehicles designed for E20 deliver stronger acceleration, which is especially useful for city driving. Its higher heat of vaporisation lowers intake manifold temperatures, allowing for a denser air-fuel mixture and better volumetric efficiency.

Citing NITI Aayog’s findings, the ministry said greenhouse gas emissions from sugarcane-based ethanol are 65% lower and from maize-based ethanol 50% lower than petrol.

Between 2014-15 and July 2025, ethanol blending by public-sector oil companies has saved ₹1.44 lakh crore in foreign exchange, replaced 245 lakh metric tonnes of crude oil, and reduced CO₂ emissions by 736 lakh metric tonnes, equal to planting 30 crore trees.

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Economic Benefits of E20 Fuel

At 20% blending, farmers are expected to earn ₹40,000 crore this year. Foreign exchange savings could touch ₹43,000 crore. The government credited ethanol blending with improving rural incomes and reducing farmer suicides in crisis-hit regions like Vidarbha.

The Centre dismissed claims of major wear and tear, saying E20 is compatible with most vehicles. Some older models may require early replacement of rubber parts or gaskets, but this is a low-cost, one-time process during routine servicing.

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Pricing and Policy of E20

Currently, the weighted average price of ethanol is higher than that of refined petrol. However, oil companies continue blending because of the long-term benefits to energy security, rural incomes, and environmental protection. Insurance coverage, the ministry assured, will not be affected by E20 use.

The government also confirmed that E20 use will remain capped until 31 October 2026. Any further increase will depend on the Inter-Ministerial Committee’s recommendations, industry consultations, and a formal decision.

With its environmental, economic, and performance benefits, E20 fuel cuts carbon emissions by 30% and strengthens India’s push for cleaner, greener energy. The Centre believes that with the right vehicle tuning and awareness, this fuel can drive both sustainable growth and better driving experiences.

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