Union Road Transport Minister Nitin Gadkari has informed the Rajya Sabha that some older BS-III vehicles may require replacement of certain rubber parts and gaskets when using E20 petrol. However, he clarified that studies have found no major impact of E20 fuel on overall vehicle performance.
According to Gadkari, vehicles manufactured between 2005 and 2016 under the BS-III category may need minor changes during regular servicing. The replacement of rubber components and gaskets can be easily managed as part of routine vehicle maintenance.
The minister shared the details while responding to a question in the Rajya Sabha about the impact of E20 petrol on vehicle performance, fuel efficiency, engine life and maintenance costs.
The government-backed studies were conducted by organisations including Indian Oil Corporation Limited (IOCL), Indian Institute of Petroleum (IIP), Society of Indian Automobile Manufacturers (SIAM), and Automotive Research Association of India (ARAI).
The studies found that BS-VI vehicles continued to meet emission standards even when tested with E20 petrol. Gadkari also said that there is no requirement to modify engines of cars and two-wheelers for using the blended fuel.
He added that tests on older vehicles also did not show any significant changes in performance or unusual wear and tear. Parameters such as driving experience, engine starting ability, metal compatibility and plastic compatibility were found to be normal while using E20 fuel.
However, tests on BS-III vehicles introduced from 2005 and manufactured before 2016 showed that some rubber parts and gaskets could require replacement.
The government has also clarified that any reduction in mileage cannot be linked only to the use of E20 petrol. According to Gadkari, fuel efficiency depends on several factors, including driving style, vehicle maintenance, oil and air filter changes, tyre pressure, wheel alignment and air conditioner usage.
There have been reports from some vehicle users claiming issues such as engine problems and reduced mileage after the introduction of E20 petrol. However, the government has maintained that scientific studies do not show major concerns regarding vehicle performance or safety.
E20 petrol, which contains 20% ethanol blended with petrol, is part of India’s effort to increase the use of biofuels, reduce fuel imports and lower carbon emissions.
