Karnataka Tests Petrol Samples at 67 Locations Over Ethanol Blending Complaints: CM Shivakumar

Bengaluru: The Karnataka government has intensified its investigation into complaints of excessive ethanol blending in petrol, with petrol samples collected and tested at 67 locations across the state. Chief Minister DK Shivakumar said the government was taking the issue seriously following complaints from thousands of motorists about reduced mileage, engine problems and vehicles stalling while in motion.

Speaking to reporters in Bengaluru on Sunday, November 8, Shivakumar said inspections had been conducted not only at petrol pumps but also at facilities involved in ethanol blending and fuel distribution.

The development has triggered a wider debate over petrol quality, the Centre’s ethanol-blending programme and the possible impact of higher ethanol concentrations on vehicles.

Karnataka Government Investigates Alleged Excess Ethanol Blending

According to Chief Minister DK Shivakumar, the state government received several complaints from motorists alleging that petrol contained ethanol beyond the prescribed E20 blending limit.

The government has taken particular note of allegations that ethanol content in some petrol samples could be as high as 31.5 per cent, significantly above the prescribed 20 per cent level.

Shivakumar said samples had been collected from 67 locations across Karnataka and that officials had gathered documents relating to the blending and distribution process.

He added that the investigation was not restricted to retail petrol outlets, as authorities were also examining different stages of the fuel supply chain to identify where alleged irregularities might have occurred.

Motorists Complain About Reduced Mileage and Engine Problems

One of the major concerns raised by the Karnataka government is the reported impact of higher ethanol blending on vehicle performance.

According to Shivakumar, thousands of motorists have complained about several problems, including:

• Reduced fuel mileage and increased petrol consumption.
• Vehicles covering shorter distances than expected.
• Engine performance issues.
• Vehicles stalling while in motion.
• Concerns about possible engine damage and maintenance expenses.

The government has argued that fuel quality and public safety should remain the priority and that motorists should not face additional financial burdens because of alleged irregularities in petrol blending.

Centre Asked to Respond to the Controversy

Shivakumar criticised the Union Government over the issue and said the Centre could not avoid responsibility for ensuring fuel quality and consumer protection.

He questioned the justification for increasing ethanol blending beyond prescribed levels, particularly if it resulted in inconvenience or financial losses for vehicle owners.

The Chief Minister also urged political leaders across parties to raise the issue, saying that fuel quality and public safety should be treated as matters of public interest rather than political differences.

Oil Companies Dispute Karnataka’s Findings

The allegations have been disputed by the three major public-sector oil marketing companies — Indian Oil Corporation, Bharat Petroleum Corporation and Hindustan Petroleum Corporation.

The Union Ministry of Petroleum and Natural Gas issued a statement on November 7, saying that tests conducted on 893 petrol samples across 27 states and Union Territories found the fuel compliant with prescribed quality standards.

Significantly, the ministry said all 56 samples tested in Karnataka recorded ethanol content between 19 and 20 per cent.

The oil companies also questioned the sampling procedures and laboratory testing methods used in the Karnataka government’s investigation. They called for joint sampling and independent verification in accordance with prescribed technical standards.

The Centre maintained that E20 petrol supplied by public-sector oil companies meets the applicable Bureau of Indian Standards specifications.

What Is E20 Petrol and Why Is It Being Discussed?

E20 petrol is a fuel blend containing 20 per cent ethanol and 80 per cent petrol. India’s ethanol-blending programme aims to reduce dependence on imported crude oil, support domestic agricultural producers and improve energy security.

Ethanol is primarily produced from agricultural feedstocks, including sugarcane and grains.

However, concerns have emerged regarding vehicle compatibility, fuel efficiency and the quality of petrol being supplied to consumers.

Vehicles designed and calibrated for E20 fuel are generally expected to operate within the prescribed specifications. The actual impact on mileage and performance can vary depending on the vehicle model, engine design and fuel quality.

The current Karnataka controversy is specifically about allegations that some petrol samples contain ethanol concentrations significantly above the prescribed E20 level.

Detailed Investigation Report Expected

The Karnataka government has indicated that Food and Civil Supplies Minister Rizwan Arshad will present the inspection findings and explain the next course of action.

The investigation is expected to provide further details about the petrol samples, locations inspected, laboratory findings and the fuel distribution network.

The government has also indicated that information has been shared with the Union Government.

Meanwhile, oil marketing companies have sought access to the state’s testing records and counterpart samples to enable independent verification.

Petrol Quality Dispute Raises Questions for Vehicle Owners

The controversy has brought petrol quality and ethanol blending under increased public scrutiny.

While the Centre maintains that its testing confirms compliance with E20 standards, Karnataka’s allegations have raised questions that require transparent and technically sound verification.

For millions of vehicle owners, the central concern is straightforward: whether the petrol purchased at fuel stations meets prescribed quality standards and whether their vehicles are being affected by any deviation.

The outcome of the investigation and any independent joint testing could play an important role in resolving the dispute.

Until the findings are independently established, motorists and policymakers will be watching closely for clarity on petrol quality, vehicle performance and consumer protection.