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Bad Driving Habits (M/T)

Originally Posted by Bleek In no way, shape or form is putting the car in neutral wasting gas. Infact, if you're cruising at a "higher speed" (IE 80mph) and go

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Old 05-16-2011, 02:11 PM   #7 (permalink)
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Originally Posted by Bleek View Post
In no way, shape or form is putting the car in neutral wasting gas. Infact, if you're cruising at a "higher speed" (IE 80mph) and go into neutral, the car reads you're getting a higher MPG simply because the engine is not cranking/producing RPM's.
Like others have said - it's pretty common knowledge.

Car in neutral at ANY speed = throttle body is default to idling to keep engine running. Idling uses fuel regardless if your car is stopped or coasting since it makes the engine stay at a certain rpm.

Car coasting at speed in gear means the throttle body is actually shut off at this point if you are coasting and have your foot off the gas. Coasting in gear wastes no gas since the throttle body is completely shut.

You can actually test this out yourself in the 370z if you put our little computer thing to the real time mpg bar. Coast in idle then coast in gear - Coasting in gear will yield a higher mpg than coasting in neutral.
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Last edited by Masa; 05-16-2011 at 02:14 PM.
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