The Economic Times

E100 ethanol fuel allowed in India: What it is, whether you can use it in your existing petrol car & what the new rules mean

E100 ethanol fuel India: The government has amended vehicle emission rules to allow E100, a fuel containing 100% ethanol, in compatible flex-fuel vehicles alongside E85. The move supports India's push to increase ethanol use and reduce dependence on imported crude oil. However, E100 cannot be used in regular petrol cars unless they are specifically designed for the fuel, and no nationwide rollout date has been announced.