High Fuel Temperature

Hi

The other day I was on the ground a OMDB Dubai preparing to fly the 777-300 ER to Manchester EGCC. The outside air temp was 43 degrees celsius. The fuel temp was also +43 degrees and the fuel temp was indicated in amber. After take off and as expected the fuel temp slowly dropped. When it reached + 41 the temp figure then turned white.

Out of interest I have just checked FCOMv2 chapter 20 where under the title fuel temperature it says the following "The temperature is normally displayed in white. It is displayed in amber when the fuel temperature approaches the fuel freeze temperature entered on the flight management system CDU."

There is no mention of the fuel temperature being displayed in amber when the fuel is very hot due to the ambient temperature being very high.

I was wondering which of the following is the case:

1. FCOMv2 applies to earlier 777's than the actual  version simulated by PMDG or
2. It's a bug in the simulation or finally:
3. It's some other cause.