Quote:
Originally Posted by Homeslice
1) people who back up and then put it into Drive before they have stopped backing up? Probably damaging not only their transmission but also other components like the engine mounts that are forced to absorb the stress. I notice women are more likely to do this.
2) people who are parked on a hill, and when they get back in and leave, you see them forcibly yanking their shifter out of Park with a big "clunk" because when they originally parked they didn't know how to do it properly. Hint for the stupid -- When you park, you are supposed to pull your parking brake BEFORE you take your foot off the brake, instead of allowing your transmission to absorb all the stress of holding the car.
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There is a shaft in your transmission called a "parking pawl" that supports the weight of your vehicle when it is parked. No doubt the park brake is a better option. Also, if the transmission can handle the accelerative forces of the engine, it can handle the engines weight while it is stopped.
As for the reverse to drive thing, your engine takes care of that. There is a reason why your auto transmission is designed to slide from reverse to drive without pushing down any of the buttons. It might be a little more abrupt than doing it with a manual trans, but your auto tranny WILL absorb this. It was designed to shift for you after all.
Now, neither of those things are particularly good for you car,but I wouldn't put too much thought into them when buying a vehicle.
I can see what you're saying about motor mounts, except that they're designed to take up flex and vibration. If they're near breaking, this wouldn't help them. But, causing them to wear faster? I don't see it..
Wanna know what's hard on a car? Starting it and then immediately driving off without letting the oil thin out and circulate. Turning the wheel while you're stopped, it's much harder on the steering components than while you're moving. Running your a/c then not running just the fan after, this allows moisture and eventually mold to build in your system.