The Supreme Court has greenlit the nationwide rollout of E20 petrol by 2025, dismissing concerns about compatibility with older vehicles. The court sided with the government’s argument that E20 supports sugarcane farmers, reduces emissions, and decreases reliance on fossil fuels. While newer vehicles are E20-ready, older models might experience reduced fuel efficiency and potential wear. Post navigation India-Russia defence ties: Su-57 fighter jets to be made in India? Policy shake-up: OpenAI to flag violent chats; law enforcement may be alerted