E20 fuel contains 20% ethanol blended with petrol, targeting nationwide availability by 2025 (advanced from 2030)
GK and monthly revision
E20 Fuel in India: What is its impact on vehicles and why is it not cheaper than petrol? | Explained
India's E20 fuel rollout (20% ethanol blended petrol) targets 2025 nationwide availability, advancing from the original 2030 goal. The blend reduces oil imports and emissions but isn't cheaper than petrol due to ethanol's lower calorific value requiring more fuel for same distance. Older vehicles (pre-2009) face compatibility issues like material degradation and cold-start problems, while flex-fuel vehicles are being promoted. This aligns with India's net-zero 2070 pledge and energy security strategy.
Source: The Hindu. This summary and analysis are AI-written from that report and are not individually fact-checked — confirm names, dates and figures with the source before you rely on them.
Revision structure
Monthly events and exam calendar context
Static GK and one-liner notes
Quiz and mock-test revision path
Key points
Exam-ready takeaways
Ethanol blending saved ₹99,000 crore in forex and reduced 519 lakh metric tonnes CO2 emissions (2014-2024)
E20 not cheaper than petrol due to ethanol's 30% lower calorific value increasing fuel consumption by 2-3%
Vehicles manufactured after 2009 are E20-compatible; pre-2009 vehicles risk corrosion, seal damage, cold-start issues
India aims for E100 (100% ethanol) flex-fuel vehicles; 2G ethanol plants being set up using agricultural residue
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