OMCs reject E20 fuel contamination claims after nationwide testing

State-run oil marketing companies (OMCs) – Indian Oil, Bharat Petroleum (BPCL) and Hindustan Petroleum (HPCL), have rejected recent claims of widespread contamination in E20 petrol, saying a nationwide testing exercise found no evidence to support reports of elevated chloride and moisture levels. The companies said fuel samples collected across the supply chain recorded chloride levels within the prescribed limits, while enhanced checks have also found no signs of water ingress in underground fuel storage tanks.

1. OMCs say chloride levels remained between 0-3ppm
2. Testing covered refineries, ethanol plants, depots and retail outlets
3. Two retail outlets temporarily suspended after isolated findings

This statement comes less than a week after reports citing an internal communication from the Society of Indian Automobile Manufacturers (SIAM) alleged elevated chloride and moisture contamination in E20 petrol, raising concerns over possible damage to fuel system components. SIAM, however, subsequently withdrew the communication, saying media reports had "selectively" quoted excerpts from the document and that some of the figures cited required further authentication through additional data collection and consultation with its member OEMs.

OMCs say testing found no widespread contamination

The oil companies said samples collected from refineries, ethanol distilleries, storage depots, tanker trucks and retail fuel stations recorded chloride levels between 0ppm and 3ppm, well below the several-hundred-ppm figures reported earlier. They added that claims of chloride contamination of up to 500ppm could not be validated.

According to the companies, testing included more than 100 petrol samples from refineries, ethanol supplied by 80 distilleries, more than 80 samples from terminals and over 160 samples from retail outlets, all of which returned chloride readings within the 0-3ppm range. The ethanol testing was carried out jointly by the OMCs and the Centre for High Technology, the petroleum ministry's technical arm.

Two fuel stations flagged during testing

The OMCs said two retail outlets recorded elevated chloride levels during the exercise. Fuel supplies at both stations were suspended, investigated and restored only after corrective measures were implemented.

Moisture checks expanded across fuel stations

On the issue of moisture contamination, the companies said around 90,000 fuel stations have begun mandatory inspections of underground storage tanks, with checks carried out eight to twelve times a day. According to the OMCs, no water intrusion has been detected so far.

The companies added that mobile fuel testing laboratories have been deployed, with results independently verified by fuel laboratories. Test data is also being published on the Centre for High Technology's website and will continue to be updated as additional samples are analysed.