Overview
- The Finance Ministry issued notifications this week that exempt petrol blended with 22%, 25%, 27% and 30% ethanol from central excise, subject to conformity with Bureau of Indian Standards rules.
- BIS has already published fuel-quality specifications for E22–E30, creating the technical framework required before any commercial sales can begin.
- Authorities and industry sources say the tax and standards steps are preparatory and that retail rollout will wait for automaker validation, durability testing and distribution changes.
- Higher ethanol blends contain less energy per litre than pure petrol so motorists may see lower mileage and vehicles not certified for above E20 risk material damage and warranty issues.
- Industry groups estimate E22–E25 could raise ethanol demand by hundreds of crores of litres, which would support domestic producers even though there is no guarantee oil companies will pass fiscal savings to consumers.