India is likely to introduce a mandate for blending isobutanol with diesel later this year, marking a significant step in the country’s efforts to improve energy security and reduce carbon emissions. According to officials from the Ministry of Road Transport and Highways (MoRTH), the proposal is under serious consideration and could be rolled out in the coming months.
The move comes as India continues to reduce its dependence on imported crude oil while accelerating its transition towards cleaner and more sustainable fuels. Unlike ethanol, which is primarily blended with petrol, isobutanol offers several advantages for diesel applications. It has a higher energy density, better compatibility with diesel engines and lower corrosiveness, making it a promising alternative fuel.
Government officials have highlighted that diesel consumption in India is nearly twice that of petrol. As a result, even a modest blending mandate could have a substantial impact on reducing fossil fuel imports and strengthening the nation’s energy resilience. Bharat Petroleum is already conducting research on isobutanol-diesel blending, with initial results reported to be encouraging.
If implemented, the policy could support India’s broader decarbonisation goals while creating new opportunities for the biofuel sector. The initiative also aligns with the government’s ongoing efforts to promote alternative fuels and build a more sustainable transportation ecosystem.
