[nick666]

This isnt about consumption. Its about engine health. An automatic changes into a lower gear depending on how much you press the throttle.

The consensus among the drivers I know is that if you press hard on the pedal you should change into a lower gear otherwise it damages the engine, the lubrication being inadequate for high loads on low rpm.

Is that true ? Is it really damaging on the engine ? Isnt this only about that point where the rpm is so low that the engine makes that specific ugly vibration and noise (usually below 1000-1500 rpm)?