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My 2011 Town and Country with the newer 3.6 pentstar engine has an eco button. Push it and it definitely changes shifts points for the 6 speed. I have had it on for years now all the time but the other day somebody's purse knocked it back off to normal mode. I noticed it right away accelerating away from a light up to 65 mph, like a rocket in comparison to every other day at the same light with the same throttle input. I guess I forget this van is pushing 300 hp.
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