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Old 12-17-2008, 04:47 PM   #11 (permalink)
Matt Herring
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Join Date: Jun 2008
Location: North Andover, MA
Posts: 857

Bone's 2010 Prius - '10 Toyota Prius Black
90 day: 56.78 mpg (US)
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pale...

i disagree that the higher the speed the less mpg gain u see from pulse and glide. my in gear sweet spot is 57 mpg according to my scanguage and at higher speeds it does go down from there.

however when i get it gradually up to 70 and neutral coast down to 55 the engine is working less in the 15 mph drop in coast than it would be starting the coast at 65. plus i coast farther going down from 70 which means im driving farther in neutral coast than starting glide at 65.

the golden rule is the longer the neutral coast the better the mpg gain. anytime the car is in neutral it is working less and using less fuel...as long as its above 20 mph for my vehicle...my scanguage confirms it.

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