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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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Exclusive | Nitin Gadkari: Mileage ‘marginally’ impacted by E20, but vehicle damage not a risk

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

Why in news

Union Minister Nitin Gadkari addressed concerns regarding the impact of E20 (20% ethanol, 80% petrol) fuel blends on vehicle mileage and engine integrity.

Background

E20 fuel consists of 20% ethanol and 80% petrol. The Minister cited Brazil's successful use of a 27% ethanol-petrol blend for over 40 years as a benchmark for safety and efficiency.

Facts for Prelims

  • S&TE20 fuel: A blend containing 20% ethanol and 80% petrol
  • FactBrazil has successfully utilized a 27% ethanol-petrol blend for over four decades
  • S&TFlex-fuel engines: Designed to run on multiple fuel types including ethanol and gasoline
  • S&TMethanol: Identified as a potential alternative fuel for transportation and marine operations

For Mains

Q. Discuss the potential of ethanol blending and flex-fuel technology in achieving India's decarbonization goals while addressing technical and economic concerns.

Dimensions to cover in your answer

  • Technical trade-off: Marginal reduction in fuel mileage versus the reduction in carbon intensity per kilometer
  • Supply chain integrity: Risks of engine damage arising from fuel adulteration rather than ethanol concentration
  • Global benchmarking: Leveraging Brazil's long-term ethanol experience to scale domestic biofuel infrastructure

Keywords: Decarbonization · Flex-fuel technology · Biofuels · Energy security · Carbon footprint

Full chronology for revision →Read the full news →Report a mistake in this noteSource: Indian Express ↗Also: GS3 · Growth, inflation & macro indicators

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