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Old 05-08-2014, 10:41 AM   #2 (permalink)
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Join Date: Dec 2007
Location: Upstate SC
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Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)

Camryglide - '20 Toyota Camry hybrid LE
90 day: 60.75 mpg (US)
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Even though the engine uses no fuel when coasting in gear, the engine drag slows you down and shortens your coast so quickly that you get better overall fuel economy by coasting in neutral even though the engine is running since you are coasting so much further when in neutral. Of course the best fuel economy can be gotten by engine off coasting in neutral. Coasting in gear has a place in FE driving, mainly for limiting speed on steep down hills, when coming up to a place you have to stop, or for reducing your speed when you are getting too close to the car ahead of you.
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