The Ministry of Petroleum and Natural Gas has conducted the most aggressive quality-control drive the fuel network has seen, according to industry sources. Operations at several fuel dispensing units were stopped provisionally until they complied with standards and the water probes in the pump tanks were confirmed to be functional. This crackdown on fuel stations nationwide centred around water ingress tests to eliminate water ingress issues in storage tanks.
Oil marketing companies (OMCs) can shut down a petrol pump due to a variety of technical, operational and financial non-compliances, including fuel adulteration, tampering with metering unit seals, unauthorised fittings and unauthorised storage facilities, among several others, fuel industry insiders reveal.
According to ministry sources, a suspension did not mean adulterated or contaminated fuel was found at that pump. Some dispensers were shut because the water probes were not working, and a malfunctioning water-monitoring probe in the underground tank that is supposed to detect water ingress was the main culprit. “A pump that cannot prove its fuel is clean now loses the right to sell it,” said an industry source.
This is a significant hardening of the rules. The government has mandated water-ingress testing of underground tanks 8 to 12 times a day, a regime already running at 88,995 dealerships. A sweeping audit prioritising older outlets has covered 84,687 stations; field teams are checking tank integrity during rainfall, and monitoring probes are now active at 85,649 outlets, with faulty units being repaired on priority. OMCs have also run 7,296 sulphur tests and 1,079 chloride tests on ethanol-carrying tankers, plus 151 chloride tests on their own storage tanks.
In contrast, in Brazil, where higher ethanol blends are used, the country’s petroleum ministry carries out 5,000 checks a month.
Why the urgency?
The intensity reflects a government under pressure to protect the credibility of its ethanol programme
There is angst among motorists who have raised several concerns over mileage loss, potential component wear and the compatibility of pre-2023 vehicles. Adding to the noise was a leaked letter from the Society of Indian Automobile Manufacturers flagging chloride levels in E20 samples. SIAM withdrew the letter within days, saying the figures needed further verification. Mahindra has separately described interpretations drawn from a leaked internal email as baseless, calling the industry data limited and preliminary.
The petroleum ministry’s audit is a response to a confidence problem, and regulators have taken the drastic step of shutting down a pump over a broken sensor irrespective of the quality.
Probes that don’t work cannot catch water, and the fact that thousands needed fixing highlights the depth of the quality standards under scrutiny.
The bigger gap is regulatory. BIS standards still carry no statutory limit for inorganic chlorides in finished ethanol-blended petrol; the 3ppm cap is an internal procurement guideline.


























