Why does braking gradually and accelerating slowly give a car better gas mileage?

Question

Does this advice apply to all cars?

In: 156

Answer 1

The more the car accelerates the more it consumes energy, which in turn, consumes more gasoline. Breaking gradually doesn’t necessarily give better mileage (unless you drive an EV) but you usually do it before a stop sign because in case the light turns green, accelerating from slow speed consumes less energy than accelerating from complete stop.