Catch 20/22! Accelerating decent up to speed is better for economy as long as it is not too much. I meant keep your upper speed in relationship to 1,900 rpms. I loved the rollercoaster analogy, makes since. Have you considered the other suggestions?
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2012 FX4 Waldoch M80 Edition Supercrew, 3.5L Ecoboost, Flowmaster Exhaust, K&N Air Filter, Road Armor Grill Guard, huge smile! 
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