Vehicle complaints rise amid concerns over ethanol-blended petrol. The Keralam civil supplies department conducted inspections of petrol pumps in Kochi to examine the ethanol mix in E20 petrol. Officials took six samples, forwarding two for lab tests in Kakinada. Karnataka CM D K Shivakumar says petrol samples were tested at 67 locations after complaints that 31.5% ethanol blending was affecting vehicle mileage and engine performance.