While the headline changes in the power unit regulations for the new Formula 1 era in 2026 centre around the mix of power between internal combustion and electrical deployment, the way the FIA measures, controls, and interprets the fuel that reaches the engine through the flow meter is shifting too.<br>The dual verification system required a profound evolution, given the move to 100% sustainable ...<a class='more' href='https://www.autosport.com/f1/news/f1-2026-efuels-advanced-additives/10789765/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>