May I ask please?
As I understand it, fuel in the wing and centre tanks is kept unpressurised.
"Commencement of waxing" occurs at a certain minus temperature!
Does the pressurizing of the fuel between the first series fuel pumps/oil heat exchangers and the engine actually change the characteristics at which waxing would commence/diminish?
As an example, water boils at 100 degree Celsius at sea level IIRC.
By raising the pressure, the temperature of when water boils also rises.
Does pressurizing of the fuel change any "waxing conditions/characteristics?"
Regards
Mike McInerney