Bhutan turns down E20 petrol from Indian OMCs. Hers's the science behind its decision
Published on: July 3, 2026, 7:48 p.m. | Source: Business Today
Ethanol is hygroscopic, meaning it readily absorbs moisture from the atmosphere. This makes its storage more demanding than conventional petrol. If water enters storage tanks, ethanol-blended fuel can separate into different layers, reducing quality and affecting engine performance.
