Quote:
Originally Posted by DAN
when off the throttle, coasting or not, most motors idle. i can't see how any useful fuel is saved by not idleing that little bit.
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Almost every major manufacturer is rushing to introduce idle-stop as a fuel saving measure in its vehicles. And not just hybrid vehicles.
You typically see figures in the 5-10% range for fuel saved in urban driving from using idle-stop.
EDIT: some, but not all, of these vehicles shut down when the vehicle is coasting or braking at low speeds; others only shut off after the vehicle has come to a full stop.
E.G.
BMW is claiming an 8% improvement on its 1 series (non-hybrid).