And actually the whole purpose of manual override is to provide
more engine braking, that's all.
It doesn't help much with acceleration, unless you go study the
power graph of your engine and determine where's the best point to
upshift.
For most auto gearbox with manual override function, it will
automatically upshift at redline. But for some marques, they prefer
to make it more manual-like so it holds on to the gear even if it's
at the redline. BMW's auto gearbox with manual function is one
example. It will not shift up unless you ask it to.
So the main purpose is to let you nudge "-" to downshift and
achieve greater engine braking. So it's made to downshift, don't be
afraid to do it. It most probably won't damage the gearbox because
its processor will know what to do to achieve downshift.
Don't think i'll get serious enough to study charts and
graphs.
Try it once and see what happens.
Thanks mate!
