Article 4.1
ICE Performance Index monitoring
Technical Regulations
Article 4.1
ICE Performance Index monitoring
Chapter: Appendix C5
In Simple Terms
The FIA tracks how well each team's engine (ICE) performs and compares it against the best engine on the grid. This monitoring ensures all engines are performing fairly and helps maintain competitive balance in F1.
- The FIA monitors the performance of the engine (ICE) portion of every Power Unit supplied by manufacturers
- Each engine's Performance Index is calculated and compared to the highest performing engine
- This is a monitoring and analysis tool to track engine competitiveness across teams
- The system helps ensure fair competition between different Power Unit manufacturers
Official FIA Text
FIA will monitor performance of ICE part of all Power Units supplied by each PU Manufacturer. ICE Performance Index will be calculated and compared to highest Performance Index.
ice performance indexpower unit monitoringengine performancefia monitoringperformance comparison
2026 Season Regulations