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Old 08-06-2013, 11:09 PM   #20 (permalink)
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Originally Posted by strikes View Post
I know this is an older post but it is very relevant to my thoughts. I feel like I am getting hypermiling down very well. The only thing I don't do so far is the coasting aspect, mainly because I fear it might be terrible for my transmission. I drive a 2010 Civic Sedan - Automatic. Should I need to Rev match or should it do this automatically? I have gathered that if I wait a couple of seconds before accelerating after switching back into D that it should be fine with no problems. Just would like a little input before doing this. I know a lot of people coast, but does it have negative effects on the transmission? I plan on keeping this car for a very very long time and would hate to have premature transmission failure.
The only way you might cause damage is by turning the engine off while coasting in neutral.

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