Government Set to Issue Fresh Notification for E100 Fuel Vehicle Standards
The Indian government is poised to release a new draft notification outlining test requirements for vehicles capable of running on nearly 100 per cent ethanol, known as E100 fuel. This strategic move aims to incentivize automobile manufacturers to accelerate the production of Flex-Fuel Vehicles, which can operate on a blend of ethanol and petrol.
Background and Regulatory Delays
In December 2022, the road transport ministry initially notified test standards for vehicles using ethanol blends ranging from E5 to E85. A subsequent draft notification, issued on June 27, 2025, proposed expanding this to "E85 or more," but the final version lapsed after failing to meet the six-month deadline. During this interim period, a significant controversy emerged regarding the impact of ethanol-blended fuels on vehicle mileage and increased maintenance needs.
Renewed Focus Amid Global Crisis
With the ongoing West Asia crisis highlighting the urgency of promoting alternative fuels, the government has refocused efforts on this initiative. The new draft notification will seek stakeholder feedback before implementation, signaling a renewed commitment to reducing dependency on traditional petrol.
Industry Readiness and Challenges
While most vehicle manufacturers have developed prototypes of Flex-Fuel Vehicles, commercial production has not yet commenced. Engines designed for E100 are versatile, capable of operating on lower ethanol blends starting from E20. The petroleum and natural gas ministry has conducted two rounds of meetings with manufacturers to address key hurdles.
Consumer Concerns and Industry Demands
In initial discussions, original equipment manufacturers raised critical issues, including consumer worries about higher fuel costs due to reduced mileage—ethanol-fueled vehicles typically offer 27-30 per cent less mileage than petrol counterparts. The industry has called for a clear roadmap on ethanol dispensing stations, compensation for mileage loss, and incentives to offset the higher costs of Flex-Fuel Vehicles.
GST Disparity and Policy Support
Last year, petroleum minister Hardeep Singh Puri advocated for GST parity between Flex-Fuel Vehicles and electric vehicles, writing to finance minister Nirmala Sitharaman. Currently, Flex-Fuel Vehicles attract a 28 per cent GST rate, compared to just 5 per cent for EVs, posing a significant barrier to adoption.
This regulatory push underscores the government's broader strategy to enhance energy security and support sustainable transportation solutions in India.
