Calibrating for Fuel Quality Variations

🧠 Part of the TuningBot ECU Knowledge Base — in-depth documentation on ECU logic, maps, emissions systems and safe calibration methods.

Fuel quality varies by region, season, and supplier.

Gasoline Octane

  • 91 RON — Regular
  • 95 RON — Premium
  • 98+ RON — Super

Higher octane allows more timing advance.

Diesel Cetane

  • 45-50 CN — Standard
  • 50-55 CN — Premium

Higher cetane = smoother combustion.

Best Practices

  • Document fuel grade used
  • Inform customers of requirements
  • Build in safety margin

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