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Old 03-24-2014, 06:28 PM   #10 (permalink)
Join Date: Oct 2009
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escort - '99 ford escort sport
90 day: 42.38 mpg (US)

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Originally Posted by bikenfool View Post
Actually this might make a lot of sense. Perhaps its going into DFC for a bit. It could be more efficient to pulse the engine, blips, instead of just idling.
I think this has been tested (though not necessarily for a subaru with it's added AWD drag), leaving it in gear pulsing then coasting down in gear with dfco. from what I remember the coast downs were short enough that coasting in neutral with the engine idling was more efficient.

The wear from a bump start is pretty negligible given the forces involved. With a bump start you are getting the weight and drag of the moving parts of the engine going. Compared to just getting the car moving you are getting the whole mass of the vehicle moving.

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