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May 22, 2025 – A fiery political debate is brewing in India over the government’s ethanol blending roadmap, with opposition leader Arvind Kejriwal alleging that the Modi administration is quietly preparing to push ethanol into diesel and aviation turbine fuel (ATF), while also raising ethanol content in petrol well beyond the current E20 level. In a series of social media posts, the Aam Aadmi Party (AAP) national convenor advised citizens to “avoid buying new vehicles for a few years,” claiming their engines could be damaged by future fuel changes.
Kejriwal’s warnings have reverberated beyond India’s borders, drawing attention from global energy analysts and U.S. ethanol industry stakeholders. The allegations, if true, would mark a significant acceleration in India’s biofuel push, potentially altering global ethanol trade flows and raising safety questions about aviation fuel blends.
In a Hindi post on X (formerly Twitter), Kejriwal claimed the government intends to raise ethanol blending in petrol to “more than 50%” after introducing E20 fuel nationwide earlier this year. He wrote: “It seems they are going to adulterate petrol with more than 50 percent. They are just waiting for the atmosphere to calm down. First, they forced E20 petrol into your E0 and E10 vehicles and wrecked them. Today, if you buy a new E20 vehicle, the government will force E50 petrol into it after a few days and damage it.”
He went further, alleging that “sources indicate the Modi government plans to mix ethanol in Aviation Turbine Fuel (ATF). Experts say this could seriously compromise flight safety.” Kejriwal also claimed ethanol would soon be blended into diesel, though he provided no specific timeline or evidence.
The former Delhi chief minister had earlier written to Prime Minister Narendra Modi demanding that pure petrol remain available alongside E20 and that ethanol-blended fuel be priced lower than regular petrol. The government has not officially confirmed any plans for diesel or ATF blending.
India’s ethanol blending program, overseen by the Ministry of Petroleum and Natural Gas, has been aggressively expanded since 2020. The country achieved 12% ethanol blending in petrol in 2023-24, up from 1.5% in 2014. The official target is 20% blending (E20) by 2025-26, with higher blends under study but not yet mandated.
No public policy document or announcement has proposed ethanol in diesel or ATF. The Ministry of Civil Aviation has previously stated that any alternative fuel for aviation must undergo rigorous testing and certification by international bodies such as ASTM International before commercial use. Ethanol-blended jet fuel is not currently approved for commercial flights anywhere in the world due to concerns about energy density, corrosion, and cold-weather performance.
Experts note that Kejriwal’s claims may be politically motivated. “The government has been promoting E20, but there is no credible evidence of plans for E50 or blending in diesel and ATF,” said Dr. Rajesh Kumar, a senior energy policy researcher at the New Delhi-based Observer Research Foundation. “Such a move would require massive infrastructure changes and engine compatibility approvals, which would take years.”
The Indian ethanol controversy matters to U.S. energy markets. India is one of the world’s fastest-growing fuel consumers and a potential major importer of ethanol. The U.S. exported 1.7 billion gallons of ethanol in 2023, with India accounting for about 10% of that volume. Any shift in India’s blending strategy could affect global ethanol prices and trade patterns.
“If India actually mandates higher ethanol blends, it could increase domestic demand and reduce imports in the short term, but if they go for unconventional blends like diesel ethanol, that would create a new market for specialized ethanol products,” said Mark Johnson, an analyst at the U.S. Energy Information Administration (EIA). “However, the technical hurdles for diesel and especially jet fuel blending are enormous. We don’t see any major airline or engine maker endorsing that.”
U.S. ethanol producers are watching closely. The Renewable Fuels Association (RFA) has not commented directly on Kejriwal’s claims but noted that ethanol-diesel blends (known as E-diesel) have been tested in the U.S. for decades with limited commercial success due to stability and lubricity issues. “Ethanol in jet fuel is an even tougher nut to crack,” said an RFA spokesperson. “We support all efforts to decarbonize aviation, but safety is paramount.”
Kejriwal’s warning about vehicle damage echoes concerns raised by automakers in India. Most modern petrol engines are designed to handle up to E10 (10% ethanol) without modification. To support E20, manufacturers have already made adjustments, but higher blends like E50 require changes to fuel systems, seals, and engine calibration. Diesel engines face even greater challenges because ethanol and diesel do not mix easily and require emulsifiers or specialized injection systems.
“Running a vehicle on ethanol above its certified blend limit can cause corrosion, poor fuel economy, and potentially catastrophic engine failure,” said Susan Chen, an automotive engineer at the Society of Indian Automobile Manufacturers (SIAM). “Automakers need clear regulatory roadmaps to design vehicles accordingly.”
While Kejriwal’s claims have sparked public alarm, independent energy experts urge caution. “It’s highly unlikely that the government would introduce ethanol in diesel and ATF without extensive public consultation and safety validation,” said Dr. Kumar. “The opposition appears to be using ethanol as a political weapon to criticize the government’s energy transition speed.”
However, the lack of transparency from the government on future blend targets fuels speculation. India’s ethanol policy has historically been announced with short notice, as seen with the rapid shift from E10 to E20.
Kejriwal’s advice to avoid buying new vehicles may be premature, but it highlights a genuine consumer dilemma. For now, E20 fuel is being rolled out in a phased manner, and many petrol stations still offer regular petrol. The government has not mandated E20 nationwide yet.
For U.S. readers interested in India’s fuel future, the key takeaway is that while large-scale ethanol expansion is underway, the leap to diesel and jet fuel blending is not imminent. “The rumors are likely overblown,” concluded Johnson. “But they serve as a reminder that biofuel policies can have unexpected ripple effects on global markets and consumer choices.”
Arvind Kejriwal’s allegations about India’s ethanol blending ambitions have created a stir, but the official policy remains focused on E20 petrol. No concrete plans exist for diesel or ATF blending. Consumers should follow official government announcements and consult automaker recommendations before making purchase decisions. The episode underscores the importance of clear communication in energy transitions, especially when new fuel blends can affect millions of vehicles.
As ethanol becomes a bigger part of the world’s fuel mix, the debate over its safety and economic impact will only intensify—both in India and across the Atlantic.
