Wide open throttle reduces pumping losses. Shifting at 2000 RPM
is hardly a 'jack rabbit' start.

While this technique is efficient, it can only be done in a manual
transmission car. (OK, there are a few manumatics that would allow it.)

Dan

(This account is not used for email.)


"Misterbeets" ) writes:
> I was reading in the Bosch Gasoline Engine Management book tips for
> improving fuel efficiency, and was surprised to see wide throttle
> acceleration recommended, at least up to 2000 RPM, when you are
> supposed to change gears.
>
> Exactly the opposite of what I grew up hearing. Anyone know the
> thinking (if any) behind the old advice?
>