Water checks ordered at petrol pumps every 2–8 hours to protect E20 fuel

State-run oil marketing companies have mandated that India's petrol pumps check storage tanks and nozzles for water every 2–8 hours to protect E20 ethanol-blended petrol quality. BPCL revised its SOP in October to once every 8 hours while IOC and HPCL require checks every 2–4 hours. Ethanol's hygroscopic nature risks phase separation upon water contact.