India’s push towards ethanol-based mobility has accelerated. Just a day after Hero MotoCorp launched the Splendor+ Flex Fuel and HF Deluxe Flex Fuel motorcycles in India, Maruti Suzuki today unveiled the Wagon R Flex Fuel, becoming the first Indian automaker to publicly introduce a flex-fuel passenger car for the country. But what exactly are flex-fuel vehicles? How does ethanol blending work? Why is the government aggressively promoting ethanol-based fuel? And will it help Indian buyers save money? Here’s everything you need to know.
What is a flex fuel vehicle?
A flex-fuel vehicle, also known as an FFV, is designed to run on gasoline, ethanol, or a mixture of both. Unlike regular gasoline vehicles, flex-fuel vehicles can handle much higher ethanol content in the fuel. For example, E20 fuel contains 20 percent ethanol and 80 percent gasoline. Similarly, E85 contains up to 85 percent ethanol and E100 is almost pure ethanol fuel.Most new petrol cars and motorcycles sold in India today are compatible with E20 fuel. However, flex-fuel vehicles are specifically engineered to run safely on higher blends such as E85 and even E100 in the future.To support this, manufacturers use ethanol-resistant fuel lines, revised fuel pumps, dedicated injectors, recalibrated ECUs and sensors that automatically detect the ethanol-petrol mix inside the tank and adjust engine performance accordingly.
What is Ethanol Blend?
Ethanol blending means adding ethanol to petrol. Ethanol is a biofuel produced from crops such as sugarcane, corn, corn and rice. Since it is produced locally, the government sees it as a way to reduce dependence on imported crude oil.India currently imports over 85% of its crude oil requirements. Rising geopolitical tensions and fluctuating oil prices have pushed the government further towards alternative fuels.The government started with E10 fuel and gradually increased the ethanol content over the years. India has now officially achieved 20 percent ethanol blending, or E20, several years ahead of its original 2030 target. From 1 April 2026, E20 petrol became the standard fuel supplied across India.
What happens after E20?
The next big step is E85 and E100 fuel. This is where flex fuel vehicles become important. Regular gasoline vehicles cannot safely run on E85 or E100 fuel without major modifications. High ethanol content can affect rubber seals, fuel system and engine components if the vehicle is not specifically designed for it.That’s why Hero’s new bikes and Maruti Suzuki’s Wagon R Flex Fuel stand out. They are among the first vehicles in India specifically designed for high ethanol blends.
Why is the government pushing ethanol so aggressively?
There are three main reasons for this. The first is to reduce oil imports. India spends billions of dollars on crude oil imports every year. Ethanol blending can help reduce this dependence significantly. Another reason is emissions. Ethanol burns cleaner than gasoline and can help reduce tailpipe emissions. The third sector is agriculture. Ethanol production creates additional demand for sugarcane, corn and agricultural residues, supporting farmers and rural industries.Union Petroleum Minister Hardeep Singh Puri recently said the government is also working on policies to accelerate the adoption of cheaper E85. He added that the price of E85 fuel is expected to be “significantly cheaper” than regular gasoline. If the cost of ethanol-based fuel is significantly lower than gasoline, flex-fuel vehicles may become attractive to buyers with higher monthly mileage.
So will flex-fuel vehicles reduce running costs?
Possibly, yes. If E85 fuel costs much less than gasoline, owners may see lower fuel bills despite ethanol’s slightly lower energy density than gasoline.However, the equation is not that simple. Ethanol generally provides lower mileage than petrol because it contains less energy per litre. Simply put, vehicles can use more fuel to travel the same distance. So while fuel may be cheaper per liter, real-world savings will depend on: E85 fuel pricing, fuel efficiency, availability of ethanol pumps, and vehicle calibration.
Is India ready for E85 and E100 fuel?
India has achieved E20 blending, but moving to E85 and E100 is a huge challenge. The government plans to set up around 5,000 E100 fuel stations across India in the next two years. But mass adoption will take time. Currently, infrastructure is one of the biggest hurdles for flex-fuel vehicles in India. Without the widespread availability of E85 fuel, buyers may not fully enjoy owning a flex-fuel vehicle.
