Gear N in an automatic transmission is equivalent to neutral in a manual transmission, but it cannot be equated. In neutral position, automatic transmission is idling of planetary gear system, manual transmission is idling of first shaft and intermediate shaft.
In this way, engine power is cut off after shift lever is moved to N position.
(1) Short stop
For example, for 30 seconds after a red traffic light at an intersection, you can wait by applying brake in D gear. If this time exceeds 30 seconds, you should shift to N gear. judged by observing ground or stationary objects next to it), it is not necessary to apply brake; If you keep stepping on it, brake light will always be on, because brake light has a large power, which not only consumes electricity, but also burns light bulb easily, especially at night, this will stimulate eyes of drivers from behind.
When stopped for more than 2 minutes, be sure to shift to P, which will reduce transmission wear and prevent oil temperature from rising. It is best to turn off engine. In order to use air conditioning without turning off flame, engine runs at low speed, and approximately every 10 minutes it is necessary to depress accelerator pedal several times to prevent temperature of transmission oil from getting too high.
(2) When vehicle is moving downhill or moving at high speed, do not slip in N gear
Not only does this not save fuel, but it can also damage transmission. Because speed of transmission output shaft is very high and engine speed is low, oil supply to oil pump is insufficient, so that lubricity of transmission is reduced and wear becomes severe. Over time, this will cause premature damage to automatic transmission.