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Old 11-06-2015, 04:10 PM   #11 (permalink)
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Old Tele Man, what do you mean about shifting back and forth between Drive and Neutral, in order to coast, being (or not being) safe. Is it possibly damaging to the transmission to do so? Thanks

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Old 11-06-2015, 04:59 PM   #12 (permalink)
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On automatics you can literally just shove the shifter forward into neutral from drive. You don't have to press the button down. This prevents the possible mishap of going too far into reverse as you can't go into reverse without pushing the button down. Likewise, you can just shove the shifter from neutral back to drive.
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Old 11-06-2015, 06:04 PM   #13 (permalink)
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Quote:
Originally Posted by Manualhybrid View Post
Old Tele Man, what do you mean about shifting back and forth between Drive and Neutral, in order to coast, being (or not being) safe. Is it possibly damaging to the transmission to do so? Thanks
Older automatic transmissions had a "rear" oil-pump connected to their output-shaft(s) which permitted a "coasting" car to keep the transmission "oiled" even when the engine wasn't running; however, most of the newer automatic's no longer have that pump, which is *WHY* their Owners Manuals dictate that the cars NOT be towed with drive-wheels on the ground...ie: why FWD vehicles are almost universally towed with FRONT wheels off the ground.
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Old 11-06-2015, 09:13 PM   #14 (permalink)
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Quote:
Originally Posted by Xist View Post
What is an automatic transmission doing while in neutral, with the engine off? What needs to be lubricated?
There are still moving shafts and gears even though the engine is not mechanically locked to the wheels. In a manual transmission those moving shafts splash lubricate no matter if the engine is running or not. Automatics require fluid to be pumped, which runs off the input shaft that gets power from the engine.
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Old 11-06-2015, 10:50 PM   #15 (permalink)
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Just another thing I never knew. Thanks, bro!

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coast, coasting, engine off coasting

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