https://docs.emtronaustralia.com.au/engine-management/tuning/fuel/engine-temperature-fuel-table/index.htmlOverview Additional fuel is typically required when the engine is cold to compensate for reduced fuel vaporisation and increased fuel condensation on intake port surfaces, intake valves and cylinder walls. At low engine temperatures, a portion of the injected fuel does not immediately contribute to combustion. Instead, fuel can form liquid films on engine surfaces, reducing the amount of combustible fuel available within the cylinder. To maintain the desired air-fuel ratio and ensure stable engine operation, additional fuel compensation is required.Hugoen-us