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Originally Posted by BAN SUVS
My RS holds 1200-1500 in neutral when I'm on the highway. I attributed it to the motor attempting to hold idle as high as possible when in gear, but it could be dragging. I don't think it's much of an issue though, we rarely coast with the clutch in anyway. Don't brakes (which are substantially the same as clutch materials) also drag lightly all the time?
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If the motor is turned off, then back on w/o cranking the starter, it shouldn't start running at all unless something spins the motor. If the clutch is supposed to completely disengage the motor from the tranny, in my test listed above, turning the car back on shouldn't turn the motor over.
Also, this isn't so much an issue about coasting w/ the clutch in. I never do that. However, if I'm sitting at a light that I expect to change soon, I'll put the car in gear and sit with the clutch in. In that case, the motor is wearing against the clutch.