- India notifies BIS standards for E22, E25, E27, and E30 ethanol-blended fuels.
- The new IS 19850:2026 standard became effective from May 15, 2026.
India has officially introduced new fuel specifications for higher ethanol-blended gasoline under a fresh notification issued by the Bureau of Indian Standards. The standards cover E22, E25, E27, and E30 fuel blends and are intended for use in positive ignition engine-powered vehicles. The notification was issued on May 18 through gazette reference HQ-PUB013/1/2020-PUB-BIS (1530), while the standards became effective from May 15, 2026. The move represents another step in the country’s broader strategy to increase ethanol usage in transportation fuels and reduce dependency on conventional fossil fuels.
BIS Introduces IS 19850:2026 for Higher Ethanol Fuel Blends
The newly introduced standard, identified as IS 19850:2026, establishes specifications for ethanol-blended fuels prepared by mixing anhydrous ethanol with motor gasoline. These blends include E22, E25, E27, and E30 fuels, which contain progressively higher concentrations of ethanol compared to conventional gasoline formulations. The standards specifically apply to fuels intended for positive ignition engine-powered vehicles, ensuring compatibility, performance consistency, and quality compliance across the automotive fuel ecosystem.
Fuel Blend Standards Covered Under IS 19850:2026
The new BIS framework defines specifications for multiple ethanol-gasoline blends aimed at supporting the next phase of fuel transition initiatives in the automotive sector. These standards are expected to help fuel suppliers, refiners, and vehicle manufacturers align with evolving ethanol adoption targets while maintaining regulated fuel quality parameters.
Ethanol Blend Standards Under IS 19850:2026
| Fuel Blend | Description |
|---|---|
| E22 | Fuel blend containing 22% ethanol |
| E25 | Fuel blend containing 25% ethanol |
| E27 | Fuel blend containing 27% ethanol |
| E30 | Fuel blend containing 30% ethanol |
Implications for India’s Ethanol Fuel Expansion
The implementation of IS 19850:2026 is expected to support the expansion of ethanol-blended fuel adoption across the automotive and energy sectors in India. By formalizing fuel quality standards for higher ethanol concentrations, the regulation creates a defined framework for fuel production and distribution. The standards may also support future vehicle development strategies focused on compatibility with higher ethanol content fuels. With the notification now active, stakeholders across refining, fuel retail, and vehicle manufacturing segments will be required to align operations with the updated BIS specifications.
Frequently Asked Questions
What is IS 19850:2026 introduced by the Bureau of Indian Standards?
IS 19850:2026 is a newly notified fuel specification standard introduced by the Bureau of Indian Standards for higher ethanol-blended gasoline fuels in India. The standard covers E22, E25, E27, and E30 fuel blends prepared using anhydrous ethanol and motor gasoline for use in positive ignition engine-powered vehicles. It became effective from May 15, 2026, and establishes regulated fuel quality requirements to support higher ethanol adoption in the automotive fuel ecosystem.
Which fuel blends are included under the new BIS ethanol standards?
The new BIS standard IS 19850:2026 includes E22, E25, E27, and E30 fuel blends. These fuels contain 22%, 25%, 27%, and 30% ethanol respectively, mixed with motor gasoline using anhydrous ethanol. The standards apply to fuels intended for positive ignition engine-powered vehicles and are aimed at supporting India’s transition toward increased ethanol usage in transportation fuels while maintaining standardized fuel specifications and quality compliance across the market.
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