India has taken a big step towards cleaner mobility, with E20 petrol now becoming the standard fuel across the country from 1 April 2025. The new mandate requires petrol pumps across the country to supply fuel blended with up to 20 per cent ethanol.The directive issued earlier by the Ministry of Petroleum and Natural Gas is applicable to all States and Union Territories. Oil marketing companies have been directed to ensure that the fuel meets Bureau of Indian Standards (BIS) norms, so that the quality remains the same across regions. Here’s a quick look at the details surrounding this mandate and how it affects you.
What is E20 fuel and how does it affect your vehicle?
So, what exactly is E20 fuel? Simply put, it is petrol mixed with 20% ethanol. Ethanol is a biofuel made from crops such as sugarcane, corn and other grains. It burns cleaner than pure petrol and has a higher octane value. While regular petrol in India generally has an octane rating of 91 to 92 RON, E20 fuel has a minimum rating of 95 RON. This high octane helps in smooth combustion.
For car owners, the impact depends on the vehicle. Most new cars sold in India, especially those manufactured in the last two years, are already designed to be compatible with E20 fuel. Automakers are updating engines and fuel systems to handle higher ethanol blends, making sure performance and reliability don’t suffer.For older vehicles, the government and manufacturers have stated that E20 can still be used. However, there may be a slight decrease in fuel efficiency in some cases. However, a higher octane rating can also help engines run smoother in certain conditions.The bigger picture behind this change goes beyond just cars. The move is aimed at reducing India’s dependence on imported crude oil, which is a major expense for the country. By increasing the use of locally produced ethanol, the government expects to save foreign exchange and improve energy security over time.
