I never use ECO anymore; I don't like the sound and it doesn't do much in my usage. But my mistake, RAM engineers must have given us the 3.21 for no reason other than to laugh while we have fun discussing it.
See below for a 3 hour trip I did. This was still when I was using ECO, I've done the same trip later on with it disabled and got 9.8. When you can post a better MPG (converted, 9.7 L/100Km = 24 mpg) I'll rethink my viewpoint, until then, the 3.21 is the MPG king. I'm not saying you picked the wrong gear for your usage, or that you made a mistake. I'm saying it's a FACT that the 3.21 gets better MPG. You should re-read your second last post in this thread.
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