E20 Petrol Safe or Risky? Oil Companies Reveal Results After Nationwide Fuel TestsAmid concerns over E20 petrol quality, IOC, BPCL and HPCL said nationwide tests found no major contamination. Oil firms said fuel samples met safety standards and there is no cause for alarm. Nationwide Test Reveals Presence of Fuel within Specified LimitationsOil companies confirmed that a stringent testing of quality was carried out throughout the E20 fuel distribution chain. According to the oil companies, samples of ethanol from 80 distilleries tested were found to contain chloride levels below the specified limit.