Maruti Suzuki E100 Flex-Fuel Car Launch On June 5: Nitin Gadkari Confirms Ethanol Vehicle

Maruti Suzuki is set to take a significant step in India’s alternative-fuel roadmap, with Union Road Transport and Highways Minister Nitin Gadkari confirming that the carmaker will introduce vehicles capable of running on 100% ethanol on June 5, World Environment Day. “On the occasion of Environment Day this year... Maruti Suzuki will launch vehicles running 100% on ethanol,” Gadkari said, according to reports citing his remarks at a recent event. 

The development is strategically important because it moves India’s flex-fuel conversation beyond prototypes and policy intent. Business Today reported that Maruti Suzuki India is expected to launch a flex-fuel version of the WagonR, though when AckoDrive reached out to the company it did not confirm or deny this. 

Maruti Suzuki has been working on flex-fuel technology for several years. In December 2022, the company showcased a WagonR flex-fuel prototype designed to run on ethanol-petrol blends from E20 to E85. The company said at the time that the prototype had been developed locally with support from Suzuki Motor Corporation, Japan, and incorporated changes such as an upgraded engine, ethanol sensor, heated fuel rail, revised fuel pump, fuel injector and engine management system.
An E100-capable model would represent the next stage of that development cycle. Unlike E20, which uses 20% ethanol blended with petrol, E100 refers to nearly pure ethanol. Such vehicles require specific calibration and material compatibility because ethanol has different combustion characteristics and can be more corrosive than petrol in standard fuel systems.

The timing also aligns with policy movement. The Ministry of Road Transport and Highways recently proposed draft amendments to bring higher ethanol blends such as E85 and E100, along with B100 biodiesel, into India’s emission testing and certification framework. That is a necessary step before OEMs can move from display vehicles to homologated, customer-ready products. 

For Maruti Suzuki, the move fits its multi-powertrain approach, which includes petrol, CNG, hybrid, EV and biofuel-compatible technologies. For the wider market, however, the practical challenge remains fuel availability. Flex-fuel vehicles will need a retail network for high-ethanol fuels, clear pricing parity against petrol, and consumer confidence around performance, efficiency and long-term durability.

The June 5 unveiling will therefore be watched not just as a product event, but as a signal of how quickly India can build the ecosystem around ethanol mobility. If supported by fuel infrastructure and stable policy, E100 vehicles could become another route for reducing oil imports and widening India’s clean-mobility choices beyond battery-electric vehicles.