New Delhi, Sept. 11 -- Mahindra & Mahindra Ltd is set to become the first Indian automaker to issue an advisory on the use of E20 ethanol-blended fuel, acknowledging that older vehicles may face reduced performance. The company clarified that while E20 is safe, engines not calibrated for 20% ethanol mixing could see a dip in output.

"Mahindra is drafting an advisory on the E20 blended fuel, which should reach customers next week," Nalinikanth Gollagunta, chief executive officer of the automobile division, said on the sidelines of the Society of Indian Automobile Manufacturers (SIAM) annual convention on Thursday.

The company later issued a statement detailing the issue. "Vehicles produced post 1 April 2025 are specially calibrated for E...