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Personally after using hybrid I found eco pro a bit strange when freewheeling.
As above it must depend on driving style and type of roads.
Thinking about it the car has "kinetic energy" at a given speed and will continue to travel a long distance and only slow down slowly (given modern low rolling resistance tyres etc) so not use any fuel - no system losses...but anticipating the road is key...
Recuperating (hybrid) will slow the vehicle faster and transfer that energy into the battery to be used later. But, there must be a loss of energy when charging and then taking out (nothing is 100% efficient).
So do you use most efficient when you just coast or is better overall to save the energy for other (stop/start) parts of your journey??
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