The Indian government has strongly refuted various claims circulating on social media regarding its E20 ethanol blending program. In a detailed clarification issued on July 3, the Ministry of Petroleum and Natural Gas dismissed assertions about excessive water usage, potential engine damage, environmental risks, and fuel safety concerns, stating the program is backed by scientific evidence and extensive testing.
Addressing Key Concerns on E20
The ministry highlighted that India successfully achieved its target of 20 percent ethanol blending in petrol in December 2025, ahead of schedule. This marks a significant increase from approximately 1.5 percent in 2013-14. The nation's installed ethanol production capacity has now reached approximately 2,000 crore litres, with procurement projected to exceed 1,200 crore litres for the 2025-26 ethanol supply year.
Engine Safety and Performance
Concerns about vehicle performance and engine damage were directly addressed. The Automotive Research Association of India (ARAI) conducted extensive trials, covering around 40,000 km in passenger vehicles and 20,000 km in two-wheelers. These tests revealed no significant adverse impact on drivability or fuel efficiency, noting only marginal changes in mileage. The ministry also indicated that vehicles calibrated for E20 could benefit from ethanol's higher octane rating.
Furthermore, studies by ARAI, in collaboration with Indian Oil Corporation, the Indian Institute of Petroleum, and the Society of Indian Automobile Manufacturers, found no issues related to the compatibility of metal and plastic components. While certain rubber parts in older vehicles might require earlier replacement, modern vehicles are designed for E20 compatibility. The government also clarified that automobile manufacturers and insurers have confirmed that warranties and insurance remain valid for vehicles designed or approved for E20.
Water Use and Ethanol Production
The government rejected claims that producing one litre of ethanol requires 10,000 litres of water. The ministry clarified that ethanol production primarily utilizes surplus rice, only after national food security requirements are met. Distilleries typically use 3-5 litres of processed water per litre of ethanol and are increasingly adopting Zero Liquid Discharge (ZLD) systems to recycle water. Maize, which requires significantly less irrigation than paddy, now contributes over 40 percent of the ethanol supplied under the program, supported by higher minimum support prices.
Fuel Safety and Environmental Impact
Dismissing assertions that E20 is an untested fuel, the ministry pointed out that ethanol-blended fuels have been in use globally for decades in countries such as the United States, Brazil, Canada, Thailand, Japan, and several European nations.
Addressing viral posts claiming E20 attracts insects due to sugar content, the ministry stated that fuel-grade ethanol is distilled to remove residual sugars and contains denaturants that repel insects. The dominant hydrocarbon odour of petrol further deters insects. Claims about increased risk of water entering fuel tanks were also dismissed, with the ministry noting modern vehicles and fuel infrastructure incorporate safeguards. Viral videos allegedly showing sugarcane juice being mixed with petrol were described as fabricated, as fuel ethanol is produced through industrial processes and blended according to stringent quality standards.
On environmental concerns, the ministry affirmed that ethanol plants require statutory environmental clearances, adhere to groundwater regulations, and comply with ZLD norms.
Economic and Environmental Benefits
Since 2014-15, the ethanol blending program has yielded substantial benefits, including savings of over Rs 1.9 lakh crore in foreign exchange and payments exceeding Rs 1.6 lakh crore to farmers. Environmentally, the program has reduced carbon dioxide emissions by approximately 930 lakh metric tonnes and displaced more than 310 lakh metric tonnes of crude oil imports.
The government reiterated that the E20 program is robustly supported by extensive testing, regulatory frameworks, and international experience, dismissing social media claims as baseless.