[Antonio]

i'm not saying downshifting or upshifting shouldn't be done. I'm saying that it shouldn't be CONSTANTLY used as a means to slow your car when your brakes are much more efficient. It's fine also if you leave it in gear and slow with your brakes and push in the clutch a couple feet before you actually come to a stop and then put it in neutral. My point was that the motor shouldn't be used to slow the car constantly.

As far as vacuum, could you reword it? I wanna make sure of what you meant.