travisgod@[EMAIL PROTECTED]
wrote:
>
>> Is the fuel consumption the same if you coast downhill with the engine
on
>> but the clutch pressed and/or the transmission in neutral?
Depends on the car. An old carbureted car will burn the same amount,
within a percent or two. A modern car will burn ZERO fuel if you keep it
in gear, but will burn a constant small amount in neutral to keep the
engine spinning.
>
> the fuel consumption is the same WHILE you are going downhill,
> HOWEVER, in SOME cases, overcoming engine compression requires
> ADDITIONAL fuel.
For an old carbureted car, you're right. For everything built since, oh,
1990, you're wrong.
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