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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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The Ministry of Information & Broadcasting released a video clarifying that E20

GS3Economy · S&T · Environment · Security· Nuclear & new energy technology· Prelims·

Why in news

The Ministry of Information & Broadcasting issued a clarification regarding the moisture absorption properties of E20 fuel and its impact on older vehicle components.

Background

E20 fuel (20% ethanol blend) absorbs moisture more than pure petrol, potentially causing corrosion in older vehicles with aging seals. High-humidity locations like Cherrapunji increase this risk, while newer models like Honda Cars India (since 2009) are designed for E20 compatibility.

Facts for Prelims

  • S&TE20 fuel: A blend of 20% ethanol and 80% gasoline.
  • FactEthanol blends absorb more moisture than pure petrol, leading to potential corrosion of seals and hoses.
  • PlaceCherrapunji: Identified as a high-humidity area where moisture-related fuel issues are more prevalent.

For Mains

Q. Discuss the challenges and opportunities associated with the transition to ethanol-blended fuels (E20) in India's transport sector.

Dimensions to cover in your answer

  • infrastructure readiness
  • impact on older vehicle fleets
  • reduction in carbon footprint
  • supply chain for ethanol

Keywords: biofuels · carbon footprint · infrastructure transition · moisture corrosion · renewable energy

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