Auto industry defends ethanol fuel mandate, Pg13

Key Highlights:

• Indian government and auto industry officials defended the mandatory rollout of E20 petrol, stating extensive testing showed no widespread vehicle damage.
• Automakers like Maruti Suzuki, Hero MotorCorp, and Toyota Kirloskar Motor affirmed that even older vehicles can safely run on E20.
• A minor trade-off of 3-3.5% reduced fuel efficiency due to E20's lower energy content was acknowledged.
• The nationwide mandate for E20 petrol, a blend of 20% ethanol and 80% petrol, took effect from April 1, 2026.

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Detailed Insights:

• The Ethanol Blending Programme (EBP), launched in 2003, aims to reduce India's crude oil import dependence, enhance energy security, and promote environmental sustainability.
• India achieved 10% ethanol blending (E10) ahead of schedule and advanced its 20% blending target to 2025-26.
• The program has saved India over ₹1.4 lakh crore in foreign exchange since 2014-15 by reducing crude oil imports.
• Ethanol's higher octane rating allows for potentially improved engine performance, torque, and fuel efficiency in future engine designs with higher compression ratios.
• E20 is expected to reduce carbon monoxide emissions by 20-30% and lower hydrocarbon and particulate matter emissions.
• The EBP also supports farmers by creating demand for agricultural feedstocks like sugarcane and maize, boosting rural incomes.

Key Concepts Involved:

• E20 Fuel: A blend of 20% ethanol and 80% petrol, mandated in India to reduce reliance on fossil fuels and promote cleaner energy.
• Ethanol Blending Programme (EBP): A government initiative to mix ethanol with petrol, primarily to cut crude oil imports, reduce emissions, and boost farmer incomes.
• Octane Rating: A measure of a fuel's resistance to premature ignition or "knocking" in an internal combustion engine, with higher numbers indicating greater resistance.
• Compression Ratio: The ratio of the maximum to minimum volume in an engine cylinder during the compression stroke, influencing engine power and efficiency.