Neutral lets your car roll and parking gear locks the wheels... but you already have a parking break button, so why not just leave it in neutral and click the park button? Or... why leave it in parking gear and press the parking button? Seems like they could've either removed parking gear and leave parking button OR leave neutral and parking gear but remove parking button... seems redundant!
is the engine connected to the wheels in parking? Is the engine disconnected in neutral? Why did they make it like this? What if it's winter and I want to rev my engine to warm my car up faster before the start of a drive, should I do it in neutral or parking?
?2017-11-26T20:34:08Z
The parking/emergency brake works on your wheel brakes - usually the rear brakes. The parking prawl is within the transmission and locks the driveshaft from turning. Using both when parking on a level surface is usually not necessary, but since there is some strain on the differential, u-joints and transmission when using the transmission parking prawl on an incline it's a good idea to use both. Also, a seldom used parking/emergency brake can rust/freeze from disuse.
Preferred sequence: stop car but keep foot on brake pedal . . . . shift into park . . . . engage parking/emergency brake while still maintaining pressure on brake pedal . . . . . .after both parking prawl and parking brake are engaged, release brake pedal and shut-off engine. Doing things in that order puts the stresses of keeping the car from rolling on the parking brake rather than the parking prawl in the transmission. . . . and, using both will relieve stress on transmission in case someone taps your car while parked.
That's right, the parking brake is redundant. It used to be called an emergency brake. Technically you should place the vehicle in park AND apply the parking brake as an extra measure of safety.
You shouldn't rev your motor when cold regardless of what you have the shift lever position in. Always use Park. if you're on a hill and want to use the emergency/parking brake it's not a problem. I would never put an automatic in neutral and just use the parking brake.
The engine is disconnected from the transmission in either Park or Neutral. Park engages the "parking pawl", which locks the gears against motion. The engine still spins the fluid clutch, in either Park or Neutral.
Use both Park, and the parking brake when leaving the car, or warming it up. Don't "rev" the engine to warm it up: revving a cold engine is bad for it.