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Old 01-02-2013, 07:52 PM   #1 (permalink)
EcoModding Lurker
Join Date: Dec 2012
Location: PSL, FL
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Steady-state fuel economy better by slowing down to a speed than accelerating to it?

I swear my fuel economy, as read on the UG, is better by ~2 mpg if I accelerate faster than I intend to go and then slow down to my target speed vs. accelerating up to the same target speed.

This doesn't make any sense to me. The engines power output is the same and the drag factors should be the same (at least I think they should be.) I spoke with a friend of mine who tries to hypermiling as well and he has noticed the same thing in his truck but not his car.

What gives?

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