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i have a '05 dak w/v-8, and the getrag 6 speed. If I accelerate gradually, and drive conservatively (not that it's any fun) i can get around 20 mpg based on the on-board computer, currently i am at 20.3. And that is around town driving. I can go a month on one tank and since it costs 60 dollars a tank to fill up, i will trade the acceleration and torque, unless I really need it. Besides, the tranny has really broken in well, shifts crisply.