After 10.000km, I don't notice any engine problem like too much hot and no advice that the electro-fan started to refrigerate the engine. And Spanish summers are 25 to 35ºC.
I supose there are two reasons:
1- The engine reach sooner his normal temperature that makes the injection map change to 'normal' program soon too. Then lower consumption, because with cold engine the injection program use more fuel.
2- Aerodynamics force is proportional to speed^3
Salut
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