Article C16.5.4

GC Peak Area Variation Limits

Technical Regulations

Article C16.5.4

FIA Source

GC Peak Area Variation Limits

Chapter: C16

In Simple Terms

F1 fuel must have consistent chemical composition across batches. If certain chemical compounds vary too much between fuel samples (more than 12% difference) or appear in significant amounts where they shouldn't be, the fuel fails inspection and the team faces penalties.

  • Fuel samples are tested to ensure chemical consistency and prevent teams from using performance-enhancing additives
  • Variations of more than 12% in peak area or absolute amounts exceeding 0.10% for minor compounds make fuel non-compliant
  • Any chemical compound exceeding 0.10% that isn't in the reference fuel sample is automatically deemed illegal
  • This regulation prevents fuel manipulation and ensures fair competition between teams
Official FIA Text

Normalised peak area variations greater than 12% or absolute amount greater than 0.10% for compounds below 0.8% deemed non-compliant. Peaks absent in reference fuel exceeding 0.10% area deemed non-compliant.

fuel regulationsfuel compliancechemical compositionpeak area variationfuel testing
2026 Season Regulations