Quote:
Originally Posted by ktaylor
At what speed does engine on coasting stop giving mpg greater than 20? I'm timing how long I accelerate from lights and how long I coast for to counteract it. I've been stopping my coast down time at 20 mph.
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You got greater than 20mpg on my 98 Buick lesabre at about 12mph. Also the buicks tend to coast just fine in gear my fuel consumption was not noticeably different in gear than out.